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Education / Training Walther CP99

Walther CP99

by B.B. Pelletier

I was asked for a report on the Walther CP99 several times, the last being in the comments to the CP88 report. We have a reader who calls himself (I only assume it’s a man) CP99 Fan, but there are several others who are also interested in this airgun.

Modern gun in all respects
Walther doesn’t tell me their secrets; but, if I had to guess, I’d say the P99 was developed to be the law enforcement sidearm that the P88 never quite became. Both firearms shoot the 9x19mm Parabellum round that is currently so popular among law enforcement agencies around the world. Recoil isn’t an issue, but magazine capacity, ergonomics and manufacturing costs are, and the P99 excels in all but mag. cap., where it is equal. And the ruggedness of the newer polymer-framed P99 is quickly becoming the stuff of legends. But, we’re interested in the pellet pistols, not the firearms.

No. 1 advantage of the CP99
Like the firearm, the CP99 comes with three different-sized backstraps to adjust the gun to the size of your hand. Having the correct backstrap fitted changes the natural “pointability” of the gun from that of a two by four to something more like a Single-Action Army or even a Luger. As practical as Walther’s P38 was, it robbed the soldier of a natural-pointing handgun. Their pocket pistols, such as the PPK, still point well, and their later service-sized sidearms handled better than the P38, but they were not world-beaters.

The CP99 comes with three different backstraps, so the shooter can make it fit his hand. Just drift one pin from the frame to change backstraps!

The P88 was the most recent Walther service pistol and was a wonderful gun that was developed for U.S. Army trials to replace the M1911A1. It proved too expensive to make, but it was a wonderful natural-pointing pistol. Well, the P99 went one step farther by offering a gun the shooter can size to his own hand.

Better fit than the CP88
I like the CP88 better than the CP99, but that’s just my personal taste. The CP99 does fit my hand better, and a P99 would undoubtedly make a better defense weapon for that reason alone. I set up my CP99 to get the gun pointing where I looked and was able to shoot accurately from the hip. At distances up to about 20 feet, this is how I would engage targets most times.

In all other respects, it’s an UMAREX air pistol!
These guns are so much alike under the skin that you can pretty much extrapolate their performance specs from one gun to another. If you have a 4″ barrel, expect velocities around 350-400 f.p.s. If the barrel is 6″, the velocity will top 400, going perhaps to 425. I used to think the 4″ guns could shoot no better than a 1-1/8″ 5-shot group at 25 feet, but using the Walther red dot sight on the CP88 Tactical demonstrated that the gun is capable of a little better accuracy at that distance – perhaps one inch. You should get the same 45 shots or so from a powerlet before needing to change.

It comes down to personal taste, once again. The P99 is now James Bond’s service sidearm; so if that’s your inclination, you’re in good company!

147 thoughts on “Walther CP99”

  1. B.B.
    Thanks for the report on the CP99, appreciate it!

    Difference between CPSport and CP99.
    CP99: has metal slide, has double and single action capability, and the rear sights are a little bit different (no tactical white dots and a little more difficult to adjust) and the gun is heavier than the CPSport.

    CPSport: double action only, and the slide is made of polymer plastic. It’s lighter than the CP99, but the sights are different in that the CPSport has the tactical white dots and also easier to adjust than the CP99.

    Price difference is pretty big, but you’re paying more on the CP99 due to the metal slide and its capability to do single action. The weight makes it feel nicer and the finish on the nickel slide is very nice. The CPSport is a very nice gun to own if you’re on a budget. Craftmanship of the CPSport is pretty good. If you care about ownership pride, go for CP99 since it’s nicer, but if you just want to shoot, then go for the CPSport. Both have the same barrel, so accuracy potentials are equal.

    W.P99 fan

  2. B.B.

    That’s a good question about the backstraps for the CPSport. I don’t have the answer right now. I know it doesn’t come with the extra backstraps if you purchase the CPSPort, but maybe you can still switch to a different backstrap if a friend has an extra one, or if it’s possible to buy it as an accessory. I’ve never tried it, so I guess I’ll have to look into that once I get to my home home (I’m out of town right now).
    Interesting that you mentioned the CP99 came with 3 backstraps. I bought 2 CP99s at a local sports store and they only gave me two backstraps for each gun. I’d better double check with the store again and ask for the third one.

    Thanks B.B.

    -W. P99 Fan

  3. I purchased a Walther laser for the CP99 from Pyramid, and it is a real kick. It’s a plastic bodied unit that adjusts with an allen wrench which makes adjustment clumsy, but once set it is right on a 10 meters. The laser’s low power limits its use in direct sunlight, but works fine if the target is shaded. I live in a red dirt area and find that the red dot of the laser is easily lost on the ground.

    Now a question: are the lasers with smaller wavelengths that much more effective in bright surroundings. Most of the more costly lasers are in the 625nm range while the cheaper units like the Walther are around 650nm. They Weaver rail on the underside of the barrel will take many after market lasers as the gun has the same size and layout as the original.

    I’ve had the Gun and laser for a month or more and enjoy it more with each use.

    The gun came with 2 backstraps but the are not marked as to size but look to be very similar. The single action is much more accurate than the double. You can see the effect of off targeting with the laser beam which jumps all over partially due to the heavy trigger pull.

  4. What do you mean by the real P99 not excelling in magazine capacity, but instead being “equal?” Could you restate the things you were saying in the “Modern gun in all respects” part becuase I’m a little confused at what you are saying becuase I own a real P99 anti-stress trigger model made in 2005, purchased a 17 round magazine for it that only sticks out about .5 inches from the frame and it sounds like your saying that it doesn’t excel there. This pistol normally comes with 16 round magazines (now 15 to reduce jamming,) and I think that excels just fine for magazine capacity.

  5. I think what B.B. meant was, the P99 was better than P88 in terms of ergonomics and cost (cheaper to make). It didn’t excel in mag cap meaning it was equal to the P88, not worse than the P88.

    -W.P99 fan

  6. The CP99 is a pellet pistol. It shoots lead pellets, but not steel BBs.

    There is a CP99 Compact pistol that does shoot BBs (and not pellets).

    Which gun are you interested in?

    Have you been to the Pyramyd AIR website yet?


    These guns are all shown there and the specifications (ammo and whether they have spare magazines) is all there.


  7. question the deal anything $499.99 shiping is free now for the P99 it $139.95 so if i buy extra stuff like accesories and ammo if that and the gun totals up to over $149.99 is shiping free or no

  8. let me refrase that the p99 is one of the guns i want but i also want a gun that can shoot copperhead bbs is not co2 powered and is not a pump what do you recamend and i want a pistol

  9. Let me restate what I believe you said.

    1. You want a CP99. I put the C in because a P99 is a 9mm firearm.

    2. You also want a gun that fires Crosman Copperhead BBs and is not powered by CO2 or a pump.

    I read that as you wanting two different guns. It doesn’t matter because the CP99 is ONLY a pellet pistol and does not shoot BBs, so your other gun will have to be the one that shoots the BBs.

    You have limited the field to spring pistols, because there are no other affordable pneumatic BB guns. The Piper gatling gun sells for over $2,400.

    Your choices are:

    Crosman 972BV
    Marksman 1010 Classic
    Marksman 2000K
    Marksman 2005
    Marksman Shootin’ Darts II
    Webley Stinger


  10. Hello, I have read numerous reviews of the CP99 as being a superb choice for plinking or effectively eliminating small rodent pests. I recently bought a Walther Nighthawk, the pistol consists of the CP99 Sport, a cheaper “economy” version of the CP99 with the same accuracy and velocity, but with a maddeningly hard double action trigger and a plastic slide instead of metal slide. The Nighthawk is fantastic overall, you cant beat all the fun stuff you get included in the purchase price. The picatinny railmount alone seems impossible to find for purchase independantly (at least on U.S. websites). Once you get used to the very hard double action of the trigger the gun is very accurate from 30 yards or less, mostly due to the top notch red-dot sight included in the kits pricetag. However, I wanted to purchase a CP99 to take the place of the included CP99 Sport, and then swap out the toys (rail mount, scope, flashlight). My question to all is, does the CP99 come equipped with a removable muzzle piece? The CP Sport included in the Nighthawk has a small thread on metal snub that can screwed into place once the included compensator is removed. Can I unscrew my compensator from my Nighthawk, and then attach it (unscrewing a similar screw-in piece on the CP99?) so the weapon will be essentially the same but with a CP99 “swapped out” for the existant CP Sport?
    Thanks, hope this post isn’t too confusing.

  11. Great Review on a great gun.

    I just purchased this Gun in China and for some strange reason, the version they have here is able to shoot both pellets and 4.5mm metal bb’s.

    They have different magazines for each type of ammo. I have not been able to find pellets yet but I am about to order them from pyramid air.

    The BB Mag is generally the same as the normal one except that the holes are somewhat larger and it has a plastic or rubber sleve inserted. This has been done so that the BB’s will stay in place. The mag that I have has one loose hole so the bb keeps rolling out of the barrel.


    Using BB’s I am able to shoot through a coke can filled with water at about 15 feet. Shooting a Steel can will only allow penetration on one side.

    I must Say that I am really enjoying this gun. All thanks to this review.

  12. Thanks, B.B.,
    I would then assume that I would neet some sort of adapter to fit over the end of the gun upon which I could then “transplant” my Nighthawk adapter? Pyramid Air? Also, does walther(umarex) make a universal compensator/adaptor for use with its other co2 pistols? Or are the all aftermarket beyond the pieces that come equipped (pre-attached) to the Berreta XX-treme and Nighthawk guns? Thanks, Nps4474

  13. The item you showed me is in a British catelog. Moderator is the British term for silencer.

    I’m not sure whether this is available here in the U.S., HOWEVER, I did just review the CP88 Tactical and the M1911A1 Tactical and they both have fake silencers (made for the U.S.).

    There might be something like this coming for the CP99. I will ask Umarex, who makes the guns.


  14. found this,
    Hmmm… now im starting to wonder if all this effort is worth anything. It seems like bottom line is, if you want the look and feel of the current Walther Nighthawk, your going to be stuck with the CP Sport. Not a bad gun by any means, the red dot scope included in the gun is so friggin accurate that even though you may jerk the trigger whewn you pull the (Double action) trigger. It seems strange that it works so well (again SUPER ACCURATE within 20 feet), it would appear that the gun is optimally outfitted, and therefore intended for hunting small pests such as average sized rats or mice, in near darkness or low light conditions, (the Waltherflashlight with the pressure grip is really slick). That being said, it seems that your first shot would really have to count, (the thing is loud and I assume it would scare off anything not hit by the first few pellets). Therefore I would have expected such a weapon to include a single action (cocked) mode (which I understand can signifigantly improves the accuracy of your first shot over the sqeeeeeeze of the CP Sport and CP99 double action.) Still, the Nighthawk (with the included CP99) is a thrill to shoot, the picatinny rail also selves as a perfect way to mount the thing into a standard steel vice grip. The teeth of the vice softly “bite” right into the hard plastic rail mounts) Perfect to get a nice, accurate adjustment to the marvelous red dot sight without having to own any gunsmith equipment.

    However, I’m thinking if you have an extra 50 bucks, a Beretta XX-treme may be a better route to take. As I understand it, the pistol included in that kit is an all metal (very accurate?) m 92 FS though the FPS (for Nighthawk and Beretta XX-treme) sounds about the same at around 395. BUT, no Walther flashligh which sells for about $40, so for about $100 more give or take, you can have a similar tactical gun (Beretta m 92 over CP Sport) WITH…a single action feature selection.

    OR…..Someone can find the exact picatinny mounts used for each gun, sell them as accesories, and make a ton of dough. I think a lot of people would agree, tactical is a fun way to to with an air pistol, (of course all the gadgets may not be required, who cares?) I mean if you really needed something to protect your house with, you would own a real P99, Airguns are meant for adults and kids to have (safe) fun with.

  15. Hey B.B., as I understand it the compensator for both the Beretta xx-treme and Walther Nighthawk are basically for looks only? There is no barrel within the compensator, and a few inch long air gap between the point the pellet is expelled from the gun to the point where it exits the compensator. This piece of equipment (included in the nighthawk and xx-treme) is in no way a silencer as the gun (nighthawk) shoots much softer when the screw-on piece is removed. Therefore, my question is, do the silencers included in the Umarex tactical guns (Colt and Walther CP88 I think?) add an extended rifled barrel to the gun, thus increasing the velocity and accuracy? Do these silencers actually fullfill their intended purpose of making the other two guns any quieter? Therefore perhaps increasing their desirablitity as effective night time rodent dispatchers? Most of these Umarex CO2 guns are about as noisy as a small firecracker when the trigger is depressed on a non-silenced gun.

  16. Ok, maybe its the exact same silencer (moderator, compensator) for all four tactical guns? Strange, how do these screw into the gun I wonder? If removed, isnt there going to be a piece missing from the end of the pistol? No additional screw in piece as in the Nighthawk? All are Umarex guns?

  17. I hope it’s alright to keep posting a few comments on the Walther Nighthawk on this page. I know this particular posting site is CP99 specific, however, it seems the Nighthawk pops it’s way into a lot of different threads on this site, and the base gun for the model is a (seemingly reviled by many?) member of the Umarex family, a CP99 Sport.

    By the way, a comment on this site itself, very impressive all around. I’m quickly learning that perhaps the only thing more addicitive then shooting airguns, is reading about them on sites such as these.

    A few comments,

    This may sound nuts, but, I found myself somehow growing bored with how ridiculously accurate my Nighthawk was firing. The included red-dot sight is so dead on, that once you calibrate it and grow accostomed to the dot and learn how to compensate for the hard trigger on the the CP Sport, it becomes very hard to miss. A question, my growing suspicion is that perhaps, the best way for a novice shooter to learn how to properly, aim a weapon, and compose himself for a shot, would be to train first on a double action gun. Is there any validity to that thought? That perhaps the hard squeeze of the D. A. forces the shooter to grow better accustomed to proper shooting using sights, and stance, and breathing, ect, THEN, once this mastered, you could take better advantage of the “cocked” selectiona single/double action pistol offers.

    Anyway,I went through about 1000 rounds of assortd 177 pellets over the course of the first week of owning the gun. Crossman wads, and domed pellets seem to work best thus far, however my range of pellet selection has been limited (3 types of Crossman, and a 4 pack of Gamo assorted pellets Magnum, Hunter, ect) Any tips on the best pellets to shoot through this thing (accuracy/impact ect) would be appreciated. Anyway after all this, I have been able to plink JENGA wood block pieces (maybe 1 inch long/1.2 inch wide?)one after another from about 25 hitting about 8 or 9 out 10. I ran out of paper targets so the game pieces served as subsitiute “mice”

    So, I decided to try my novice hand at stripping all the fun add-ons away from the CP-Sport and trying to learn to shoot the gun sans add-ons. This is where the real bargin of the Walther Nighthawk shines through. For about $150 you get all the toys you nead to learn your way around a tactical pistol. You can customize, add new gadgets, take some away, fit whatever shooting needs you may have with a (rather dissappointingly) low powered gun, be it shooting unwelcome pests in the kitchen in pitch dark, or plinking paper targets in the yard.

    So the first thing I did was create a funtional silencer. I’m not sure of the legalities regarding this, though I do recall viewing a link on this site with a case involving a guilty verdict in a rifle case. Anyway, the way I see it, if you are at home, and you have some unwelcome guests (ice, rats) and don’t feel like having them all scatter at the first pellet report, do this (if you get in trouble, say it was only in the interests of in home pest control) add 2-4 layers of wide (black of course) electrical tape around the outside of the Umarex Nighthawk compensator, 4 layers seems to work, but you can add more if needed. The gun is now about 1/4th as loud as it was before the “adjustment”. No B.S., by covering the holes in the plastic, you turn the sharp “CRACK” of the CP Sport, into a barely audible “pooomf”. The of the pistol hitting your targets will be about twice as loud as the report from the gun. In fact, whatever small amount amount the trigger makes during the firing process even seems louder then the muzzle report. I also realized about two years ao I had been given a great INOVA XO3 tactical flashlight as a gift. I knew the flashlight was high end, but I had tucked it away and forgotton about it. Anyway, it fits in place of the included Walther flashlight PERFECTLY. Its heavy, metal, about 20% longer then the suppressor/compensator. Its mounted right below the the comp. from the bottom of the trigger guard running parrarel to the compensator. The mount holds the lamp very tightly in place, in fact, at first glance it would appear you were viewing a gun with two barrels. It might seem like the thing would be now be top heavy given the heavy light and compensator, however, given that the guns CO2 mechanism is housed in the magizine, this pistol is very nicely balanced. It may be a matter of personal taste but I think the gun looks insanly realistic and lethal. No plans to brandish anywhere outside of a (home) bathroom mirror anytime soon. I shot some photos, probably no way to post them here. The light this $60 flashlight purts out is amazing. Supposedly 1 mile range. Very tight, bright, narrow beam of light. IT travels straight down the path of the pellet, so well, that when firing in pitch black, you can still see the exact path tragectory of each pellet from muzzle exist to target. The beam looks like a freaking lightsaber when turned on, and swung around on the end of the Walther while aquiring targets. Any ideas on a holster for this get-ip? Maybe a big 357 revolver case might work. Like I said, imagine a CP99 Sport with compensator, with a black tactical light extending the full length of the gun. This thing is dead silent, and eminating a super tight, super bright beam of white light. I almost feel sorry for any rodents I may come across.

  18. Also, I did some quick spot test on accuracy and velocity both with, and without the newly “silenced” compensator. There was NO CHANGE (or decrease) in either velocity or accuracy. In fact, what little “kick” the gun seemed to have is gone. It seems to shoot MORE accurately, while impact stayed the same. In fact, after the very first few rounds with the newly adjusted comp. (I was about 25 feet away shooting at a fresh paper target) I thought the gun was mis-firing, jammed, or empty as I had grown very accostomed to the (now missing) report noise. When I walked over and checked the target, all the shots were very perfectly tight groups placed where initially aimed. Lots of people seem to like this gun loud, if you dont, or if quiet is required address multiple targets (mice) try this route.

  19. NightHawk,

    You obviously love your gun! I think that’s great.

    As for commenting about your home use of a homemade silencer, BATF agents broke into a man’s home in Mass. and shot him while he was sitting on his toilet. He had a replica blackpowder revolver in his hand.

    He was disabled for life from the shooting. They had a warrant, so the shooting was judged justifiable.

    This did happen back in the early ’70s and the agency has changed a little over time, but be careful about what you do in this regard.

    As for pellets, have you tried Gamo Match?

    Regarding a holster, I believe you are on your own.


  20. If you try to google the above and linka nd get
    Sorry, no information is available for the URL ph.groups.yahoo.com/group/chiartcon/photos/view/785f?b=3

    If the URL is valid, try visiting that web page by clicking on the following link: ph.groups.yahoo.com/group/chiartcon/photos/view/785f?b=3

    The second link listed in (light purple) will work.

  21. Hey, the cp99 sport that came with my Nighthawk is extremely accurate within 20-25 feet. But only due to the Walther Red-dot scope that came with the gun.

    Without it, the gun itself consistently shoots about 2 inches to the left from 25 feet. I don’t have any hard specs for you but i can give you a very short rundown on non technical performance.

    I just went outside to have a smoke, I set up five JENGA game pieces (wood blocks, about 1 by 1/2 inch in size) on a concrete block about a foot from the ground. It was pitch black outside so I used an upgraded INOVA fashlight instead of the Walther piece included with the gun.

    I stood about 20 feet away, and hit five out of five blocks using wadcutter pellets. After examining the blocks (which had been blown several feet back) I concluded the pellets had punched cleanly through at least two of the many layers of plywood used in the game pieces construction. Two of the the pellets themselves were crumpled and tightly wedged into the wood.

    Lots of fun to shoot, though I’m a little bummed out the gun seems a bit off without that terrific scope (shoots far left, even after cranking the rear sight to the right). The scope has 11 settings that have an amazing range of brightness, you can dial it in to a perfect dot with almost zero halo effect, pinpoint indeed. Hope this helps.

  22. Yikes, looks like my Walther Nighthawks safety is no longer working. It now just slides left and right with a brush of a finger. The safety looked vey cheap to begin with, very dissappointing. This is after only about two weeks of semi-regular use. I also had to return a CP99 Compact I bought around the same time (2 weeks or so ago), the slide on the gun came loose after shooting about 500 BB’s. Dissappointing, these Walther, Umarex guns are beautiful and realistic, but lacking (perhaps?) in technical craftsmanship?

  23. Got my replacement Walther Nighthawk. Worked for about 2 hours. Safety busted again. Thats 2 for 2. I don’t think the trigger/safety on the CP Sport is worth a %$#@. Im currently trying to exchange for a Desert Eagle Blowback Pellet repeater.

  24. Sure, the problem is simple. After a few hours of use with the replacement gun, the trigger started to stick after each round, the problem got so bad I had to physically force the trigger forward with my finger after each shot. I tried replacing the co2 3 times with Crosman canisters, the gas worked fine, the shots I was able to take were dead on and accurate, but the trigger was getting worse (sticking harder each time) as I was noticing this problem, I also realized that this second CP Sport/Nighthawk also had developed the same problem as my first Walther CP Sport gun, the safety worked properly for about an hour, I set the pistol from fire to safe and back only like 3-4 times. The catch has no more “click” and the safety mechanism just slides freely back and forth betweem F and S. Not good. This was after only about 50 pellets. At least the first gun worked for a few weeks before it presented with the same problem. I had noticed some gummy glue like residue on the underside of the safety (underneath and inside the actual catch) on both guns as they were pulled fresh from the box. This gummy gunk wore away over time in the first gun, not sure if it is related to the broken catch(es) issue. I had just become comfortable with the double action trigger on this gun, I was able to get 1 inch groupings at about 25 feet. But I think Walther is repacking a poorly made gun inside some great add- ons (Picatinny Rail mount, nice flashlight and red dot scope) and presenting it as a great deal. For the price ($155) you do get a lot of really cool stuff (if individually purchased I m sure the goodies with the gun would total well over 200 bucks) but it all seems like a waste if the the gun itself keeps failing. Just my 2 cents.

  25. Umarex wants to know the serial number of the faulty gun (s), and the inscription on it – whether it came through Crosman or Umarex USA.

    They also ask for a picture of the safety, if possible.

    You can contact Eyck Pflaumer at Umarex to send this information (don’t post it here, please). He can be reached at


    Eyck, who is the Vice President of International Sales, said he will take care of the problem himself.


  26. Wow, very impressive display of attentive customer service. Unfortunately I have already sent both guns back and don’t have the serial numbers handy. However it does seem that Umarex is concerned about their quality standards, great to see indeed.

  27. I just got my Nighthawk yesterday most fun ever i only wish the trigger wasnt double action but i guess it just takes some getting use to and does anybody know if the walther laser fits on the nighthawk when the rails are on doesnt have to be flush just snug

  28. I don’t think it will go on at all, the laser was designed to go around the “bare” gun, not the gun WITH the picatiiny rail. If you google search the words Walther Nighthawk Special Ops, you can see a (British?) version of the gun fitted with a different flashlight and a laser dot in addition to the red-dot scope. I think its called a Hawke Tactical Laser Sight.

  29. I don’t know how to make it clearer, unless you are asking a different question. If you are actually asking whether an owner (you) may disassemble his pistol further than removing the slide, the answer is no.

    If that’s not the question, then I am missing what you are asking.


  30. i was wondering if on the double action if the whole slide comes back on the CP99??? because on the manual it shows that the slide splits to insert the clip and the front goes forward and the back moves backwards.

  31. i like the style of the cp99 but i dont know if i should get the cp99 compact with the blowback feature or the cp99. considering the prices…do you recomend one over the other

  32. The CP99 is a pellet pistol with a rifled barrel, while the CP99 Compact is a smoothbore BB gun. There is a big difference in accuracy between the two.

    Choose the 99 for target shooting and the Compact for fun. Actually, many readers say the Compact is “better” than the PPK/S, whatever that means. I think they are referring to the realism of the Compact’s blowback action.

    I will do a direct comparison between the CP99 Compact and the PPK/S, to see what the differences really are.


  33. I just purchased a CP99 and when firing in double action mode the trigger has 2 “clicks” before it fires. one very early in the draw and one near the end. it makes a audible clicking noise and a small vibration can be felt in the gun. I am wondering if this is a normal aspect of the double action trigger or if this is a problem. any help would be greatly appreciated.

  34. Two clicks confirmed. Just as you described them. Although they do not happen with every trigger pull. Sometime I have a smooth trigger pull, sometimes the two clicks occur. I have tried to replicate them by using single action then decocking but they seem to come and go.

    I have shot off a few hundred pellets (new gun) and it seems to be functioning normally in that respect.

  35. B.B.
    I just purchased a CP99 Compact and it’s great but almost anytime i try to take two shots in rapid succession the pistol jams on the second shot. To fix this i have to put on the saftey and then pull the trigger which makes the bb (or usually 2 bb’s) fall out the end of the muzzle. Then putting the saftey off and recocking the gun shoots fine. Is this problem just me being to ambitious with my firing speed or technique or does this sound like a flaw in my specific pistol…and should i return it for a replacment?

  36. someone said that they made thier own silencer, well i was wondering if you could tell me how as i have a walther cp99 compact which so far, has no accessories for it and i would really like a silencer for it so if you could tell me how you did it and what you used to make it and send it to swishskills@hotmail.com then it would be greatly appreciated.

  37. Green CP99,

    Someone at Pyramyd AIR compared a green gun to a black one and the profiles are the same. The picture must be a stock one that no longer applies. He said all accessories including the laser will fit either gun (green or black).


  38. I baught this postol almost a year ago and its the best one so far. Even though it has a velocity of about 365, I killed a Opossom with it. Its the most accurate 4″ barrel ive used ever for a pellet gun. The trigger pull is a little long but you get use to it real fast. One major advantage the cps has over the cp99 is that the cps has doted sights.

  39. I bought my CP99 5 years ago, it has been great fun and worked flawlessly all this time. I have looked after it well (never left in the rain, never dropped, always wiped down after a dusty day, always stored in the case, always gentle with the slides and levers etc…), however, I ashamed to admit that I have not “maintained” it. Never a drop of oil, never a cleaning rod, never any cleaning pellets etc…
    For the first time my gun is not working properly and iam looking for thoughts/advice on it.
    Last week it started to jam pellets. With a fresh CO2 it will fire one 8 shot magazine fine, but jam 90% jam after that. If I remove the magazine and “dry fire” the gun their is lots of CO2 and when i remove the CO2 lots of air rushes out. Removeing the CO2 “clip” and looking up into the gun via the handle while pulling the trigger, it looks as the striking mechanism is barely moving.
    My thought is that off a fresh CO2 the striker makes enough contact with the CO2 clip to dispense and fire 8 shots. After that the striker is not making good enough contact to fire enough CO2 after that.
    Does anyone have thoughts?
    Does anyone have a field striping guide to takeing the pistol apart?
    Anyone, Anything?

  40. Do not disassemble your gun.

    First, pul a drop of Crosman Pellgunoil on the4 tip of the next powerlet. If that fixes the problem, never insert a powerlet without it.

    Your gun does not require the barrel to be cleaned. But the clips do wear out. Check the ratchet teeth on the front of every clip you own. Look with a 10X magnifier if you can. You will know if you have a worn out clip.


  41. Had a close look at my clips, sure enough some signs of wear (though did not look to bad). Ordered some new clips, got them today, loaded them up (very excited of course)….and the same Jamming issues. It seems if I let the gun sit for a few minutes it will fire off 2 or 3 with out jamming…wait another few, then fire 2 or 3 more….etc..etc…etc… Co2 problem?… Would love some ideas!

  42. I bought a CO2 Air Pistol CP99 few days ago and I got it today. But I have a question. How do I check my local or states is good to have a CO2 gun in the house? I lived in CA, San Jose. Can anyway help me, please…..thx

  43. Your local police department can answer your questions, but I’m pretty sure there are no restrictions about having a CO2 pistol in your house. This is the USA, after all.

    Taking the gun outdoors and shooting it inside the cuty limits may be prohibited, but a man’s home is his castle.


  44. Any suggestion as to how I might obtain a pair of the alternative backstraps for the CP99 ?
    My spouse threw them mine away, she said that because I said the pistol ‘felt great’ that I didn’t need them.
    I probably don’t but I didn’t even get the chance to try the different fit.


  45. Hey,
    I could..and sometimes do read gun reviews all day. I have had the CP99 Nickel for about a month or so now and I could not be happier with it. The quality is outstanding and accuracy is great. I do have a couple questions.
    1) How long is ok to leave a CO2 Cartridge in the gun?
    2) What parts need to be lubricated and how often?
    3) Should the front slide be sort of loose when open? It wobbles a bit but seems to be ok.

  46. I leave CO2 cartridges in my guns for years at a time. My PPS/K has had one for over two years and it still holds gas fine. It’s when the guns are empty that they develop problems.

    As for oiling, here is the one important thing. Always put a drop of Crosman Pellgunoil on the tip of every new cartridge before it is pierced. The oil blows through the valve and gets on every seal inside, preserving them.


  47. I know this is an old post but I figured I’d put my ideas in. First off- I’ve owned both the PPK/S and the CP99 Compact and Ive found that I enjoy the PPK/S more. It has less CO2 consumption, full metal (of course) and easily stripped compared to the CP99c.

    As for the CP99 military model- the picture is, for some reason, a picture of the real steel P99 lower frame with the CP99 slide cropped in. You can tell by the trigger guard. the CP99’s trigger guard protrudes more than the real steel. Idk why but it does for better finger support.

    Note, I do not own a CP99 yet but I am planning to purchase one when I get the funds to do so. I just thought I’d give my input.

  48. BB,
    Can the CO2 magazine be removed and replaced without loosing all the air?

    Also do you know if the Military CP99 comes with Green back straps?


  49. BB,
    I have been debating between buying the CP99, or the Izh Drozd. I know that these are two drastically different airguns. But they both have their own benefits, as you know.

    2 Questions:
    How do the two compare in accuracy? (aka which one could hold a 2 inch group at 30 feet)

    Which one is more durable? The CP99 is metal, and strong plastic composite, but what about the Drozd? Whichever airgun I choose I will have for many years to come, which one will last the longest?

    Thanks for your help.


  50. Mac,

    Which is more durable, a dump truck or a tank?

    If you said a tank, guess again. Tanks require lots of maintenance to keep them running. But so do dump trucks, so I guess that answer isn’t right, either.

    You haven’t finished the question.

    How do you intend shooting the guns?

    How do you operate? Do you crawl on your belly like a reptile or do you wipe every gun down after handling?

    Metal doesn’t make things durable. Look at the Titanic. Using the right materials makes things durable.

    The Drozd is both a gas gun and one controlled by electronics. So it is more complex. Complexity drives reliability down every time.

    Accuracy is the one question I can comment upon. The CP99 can shoot a 1-inch group at 30 feet. The Drozd can shoot a group half that size when shooting bead balls or twice that size when shooting steel BBs.

    I HOPE when you said CP99 that you didn’t really mean the CP99 Compact, which is a BB gun. Accuracy at 30 feet with that will be 4-5 inches.


  51. Thank you BB.
    Yes I did mean the CP99, pellet version (I have stopped using BBs completely for lack of accuracy)

    Im in a debate with myself over what my next airgun should be, and your blog has been a great help for insight.


  52. i just got my cp99 from umarexusa. it only come with 1 back strap that is on the gun. i heard that it comes with 2 more larger size back straps. should i contact umarexusa for the missing back straps????

  53. Anonymous,

    I sure would contact them and ask about the other back straps. However, I didn’t see them mentioned on their website.

    You post was to a blog started in 2006. B.B. does a daily blog with a topic of interest to all air gunners. There are alot of very knowledgable in all phases of our sport. Come and hang with us at /blog//.

    Mr B.

  54. I've been looking it the CP99, CP88, and Colt 1911 A1 for a plinker and mouse control. The CP99 is the gun that interests me the most, just because I really like the P99. The other two have velocities in the 4xx range, while the CP99 starts at 360 and probably drops from there. I've not had a pistol that shot this slowly before. From other people's comments, I think accuracy will be fine at close ranges. What about power though? Can 360 fps roll a mouse? It seems low, but I've only moused with 500 plus fps (which works just fine). Thoughts from others?

  55. Bristolview,

    Nice hearing from you. Are we talking head shots:)? Heck 360 fps will do fine. I cann't tell you how many rodents and pigons I wacked as a kid with my Daisy model 25. Enjoy.

    Please let us know what you did and how it's worked for you, thanks.

    Mr B.

  56. would love to get a silencer from a uk website, just too much legal stuff to justify spending $30 for an addon that you have to pay $200 for to be legal. looks like what i want just dont want trouble. plinking is supposed to be fun not run adults out of the house at breakfast. I ate well this morning!ps whats legal for a co2 in IL. and please no links…

  57. what are the specs and stipulations for a cp99 compensator? can i use a UK made mounting braket and screw and get a machined compensator on a cp99 or does that limit the decibal? check out my ideas?(builder)


    personally wish i didnt have to go through the trouble…why doesnt pyryramid air make cp99 compensators or the like. (NOW WORRIED ABOUT LEGAL) $300 invest so far, dont want it taken. ideas????????

  58. Techne50,

    Here are the answers to your questions:

    1. The CP99 compensator is not sold by itself as far as I can tell. If you desperately need it, you might want to contact Umarex.

    2. CO2 guns are legal in Illinois. The state allows ownership of airguns except for those over 700 fps or calibers over .18. Some cities have additional restrictions. Please check with your city.

    3. I wouldn't use a CP99 for rodent control inside or outside my house. I'd use a more accurate pellet gun. We used to have mice in another house, and I used a Sheridan Blue Streak to dispatch mice that came up from the basement. I'd put just 2 or 3 pumps in the gun. Killed them instantly.

    4. Whether or not you have to use traps to kill rodents in Illinois is something you have to check on your own.

    5. Pyramyd AIR doesn't make the compensator you want because there's no demand for it.


  59. Techne50,

    The suppressor that you've linked to sure looks like it would screw right on Walther's .22 caliber powder burner. If it will fit that or any other threaded pistol or rifle barrel and will work for one shot, you my friend have an illegal Class 111 item which can get you into a very expensive trial in a Federal Court and possibly buba for a roommate for at least a couple of years.

    Read B.B.'s article about them on PA's web sight.

    Just my two cents worth,
    Mr B.

    PS If you've already got it and it stays inside your house who's to know?

  60. isnt it like any other compensator? ALL soldid matter reduces the distrubution of energy in some way right. even the nighthawks are made of plastic.ppks? point is its a pellet gun. and works like any other compensator. not going to argue about how much something weighs…the braket is .177 so it WOULD NOT mount a powder/ real gun. and where can i find out the decibal ratio for weight versus supression. cuz its not a supressor its a compensator. will post what atf says later.

  61. Techni50,

    Some states and municipalities consider airguns to be firearms & regulate them as such. The federal gov't, however, does not consider them firearms & they do not regulate them.


  62. I read a review and it confused me I think, he seemed to be saying that if you shot the CP99 SA that you had to manually pull back the slide to get it to cycle. I may have misread it but I'm hoping that after you fire the CP99 the first time and want to SA that all you have to do is cock the stricker. Now I don't own a pellet pistol so don't know anything about them. I want an Umarex replica that I can mount a red dot/laser with the 8 round mag on without too much trouble and it seems that that maybe the CP99 or the Desert Eagle. So someone help me out here.

  63. The Walther CP99 does not have a blowback action. So to get it to fire single-action, you do have to manually pull the rear slide back. That is how you cock the striker. So what you wrote is correct–the slide does have to be pulled back to cock the strikes. I doesn't come back when the gun is fired.

    Don't get this pellet pistol confused with the Walther CP99 Compact, which is a BB pistol that does have blowback action.

    The Desert Eagle is an 8-shot pellet pistol that does have blowback action, so the striker is cocked semiautomatically, each time the gun is fired. It may be the pistol you want, though the grips are very large.

    I hope this helps.


  64. Thanks for the info on CP 99, I thought I read it right. I just ordered a H & K P30 because I wanted a SA & DA pistol and if I'm reading right to fire SA all I have to do is pull back on the hammer, plus as I know very little about pellet pistols I thought it would be nice to have one with the CO2 holder as a drop out that could be replaced if the seals start to leak. Now where can you find a speedloader for the Umarex 8 shot mags? I also just like the looks of the H & K P30. I'm the guy that posted on 2/5/10.

  65. i have a cp sport its a good co2 pistol i have the adapter and end thread nut (cp99) silencer, laser sight and torch ive read that silencers are not allowed in the usa and i wouldnt get one i'm uk based so its ok. it works a treat just hear a slight pop ive even took the gun apart. Please dont as its hard to put it together again. Once the pin is removed things fly apart inside before the top cover can be removered i made a mistake on refitting and have to order parts (striking pin ). still works fine getting tight group . what i did notice was after lots of shooting 3000-5000 pellets you get a concaved mark on the hammer so the hammer must not strike the striking pin as hard as it did when it was new
    having a problem with grinding when the mag rotates ive put this down to not releasing the trigger fully between shots apart from this i dont find the trigger pull a problem the safety is such a pain its like another safety when drawn from holster as long as your finger is no where near the trigger until ready to shoot no problem. safety must be on for iron plate shooting . this is not the gun for that

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