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Crosman Nitro Piston Conversion, Fits Reviews

Crosman Nitro Piston Conversion, Fits Many Newer Gamo Rifles

Average Customer Review

Rating 4.54.5 (50 reviews)
2 star

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The most helpful favorable review

1 of 1 people found the following review helpful:

Rating 5.05.0 5.0

Rating 5.05.0 5.0

By Lawrence from USA on 2009-06-14 12:40:27

Things I liked:

That I can hunt with it and leave my gun cocked until ready to shoot with no damage or weakening to the spring. It seams to have increased my power. No twang when shooting. I have the gamo CFX and I can group them at 30 yards in a dime now, But I also have the GRT III trigger. I Just Love my gun Now. It's awsome !!!

Things I would have changed:

Maybe a little cheaper in cost.

What others should know:

Shipping was real fast. No problems what so ever.

The most helpful critical review

0 of 0 people found the following review helpful:

Rating 1.01.0 1.0

Rating 2.02.0 2.0

By Jeremy from USA on 2016-09-30 23:49:59

Things I liked:

At the moment there isn't anything I like, as mine practically exploded on me.

Things I would have changed:

Specific fitment charts for gamos so you know you aren't going to have issues.

What others should know:

Be as sure as possible that this will fit and do as I did and have some test fires with the gun securely strapped down and pull the trigger from a distant with a rope or string. I am glad I did this, even though it did bust through the outer shell of the air rifle, it did fail on me internally and then when my gunsmith was disassembling the air rifle it exploded out the back.

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  • Rating 5.05.0 5.0

    Rating 3.03.0 3.0

    Things I liked:

    This piston fits many different rifles . It is quieter than a metal spring , and generates way less recoil . It' also less damaging to scopes .

    Things I would have changed:

    The only change is this - Quit producing "springer" air guns and make only "gasser" air guns (nitro piston) .

    What others should know:

    I own two air rifles with this piston already installed . Crossman F4 .177 ,and a Benjamin prowler .22 . I can't believe the difference in noise and recoil compared to my Gamo shadow whisper . I plan on buying one of these pistons and installing it in my Gamo . There are many tutorials on Youtube showing step by step how to install these pistons . The only special tools needed is a bar clamp to compress the spring or piston assembly to remove or replace the pin during disassembly and assembly .

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    Made by Crosman

    Things I would have changed:

    Have the rifle come with it already installed....(Game Viper Express)

    What others should know:

    See my review on the Gamo Viper Express

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    I ordered the nitro piston on 03/21/2017 and received it on 03/27/2017, Great FREE Shipping! I installed it the same day, and ran into a problem, my trigger would not fire ! I thought I had the wrong piston for my rifle, so i called PyramydAir, unfortunately i had to leave a message, but they did call back the next day to let me know that i had the right piston. I fixed the problem { i had put too much pressure on the piston with a washer causing the trigger group to lockup}. After removing the washer the rifle shoots GREAT!!! Much more power and accuracy, and i thought the spring unit was good, WOW !!! Thanks PyramydAir ,

    Things I would have changed:

    Nothing !

    What others should know:

    Watch the instructional videos and follow them to the T. Trying to re-invent the wheel can cause catastrophic problems.

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    I had Pyramyd install the nitro piston in my Gamo Silent Cat. I like that it's easier to cock and there is still some recoil but not as bad as the mainspring. The power on my my shots seems to be slightly less but the accuracy of the rifle has improved due to the consistency of power using the nitro piston!

    Things I would have changed:

    Absolutely nothing!

    What others should know:

    The rifle seems to warm up around the area where the piston is installed;however, this non issue has not affected the performance of my rifle. I wish I had it installed sooner it's worth it!

  • Rating 1.01.0 1.0

    Rating 2.02.0 2.0

    Things I liked:

    At the moment there isn't anything I like, as mine practically exploded on me.

    Things I would have changed:

    Specific fitment charts for gamos so you know you aren't going to have issues.

    What others should know:

    Be as sure as possible that this will fit and do as I did and have some test fires with the gun securely strapped down and pull the trigger from a distant with a rope or string. I am glad I did this, even though it did bust through the outer shell of the air rifle, it did fail on me internally and then when my gunsmith was disassembling the air rifle it exploded out the back.

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    Repeatable power. Reliable. No spring variables or noises.

    Things I would have changed:

    Nothing

    What others should know:

    Service was excellent. I purchased the item through the website, included a comment stating that I would be sending in my gun for free installation and it was a same day turnaround when they received the gun.

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    It's a must for all break barrel and lever pump air rifles.

    What others should know:

    Should be installed prior to purchasing your spring piston air rifle.

  • Rating 4.04.0 4.0

    Rating 5.05.0 5.0

    Things I liked:

    Smoother operation.

    Things I would have changed:

    Considerably more effort to cock.

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    Had my Gamo Whisper Cat converted to the Nitro Piston. Dramatically reduced the noise from the original spring, the spring was painful to the ears without ear protection, still wear ear protection when shooting with the NP installed. Operation is smoother, seems to have more power and accuracy is up with various bullet weights.

    Things I would have changed:

    Nothing

    What others should know:

    If you have a spring powered air rifle this will fit, get it converted, it is worth it.

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    everything! i had the conversion done to my gamo whisper dx after the spring broke and i am so happy i did. Not only did it make my gun a true whisper it increased power, fps, and overall performance of my gun.

    Things I would have changed:

    nothing!

    What others should know:

    it made my gun so quiet that i can shoot it and a person on the other side of a wall will have no idea i shot. If u shoot and hunt with your airgun a lot like me then this is a must have for you!

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    It's a great conversion, a bit harder to cock but not to an extreme. It is also stronger than with the spring. I don't have a chrony but the time from shot to target is shorter and hits harder than before. Great job, fast turn around , money well spent.

    Things I would have changed:

    Nothing , it feels great.

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    Just as already described , the shooting becomes much more stable than before...I have a scope camera with footage before and after the conversion, The difference is amazing , the only force now is a push straight backwards ,not bouncy all over the place as before. The cocking effort is a little bit higher but nothing unbearable.This upgrade is definitely worth. I did not notice a reduction in the noise though...At least with the gamo whisper CFR [Noise sometimes depends on the area around the gun , echo,etc...

    Things I would have changed:

    nothing serious....cocking effort if possible without reducing the power...

    What others should know:

    On gamo whisper CFR the cocking effort will increase a bit....

  • Rating 5.05.0 5.0

    Rating 4.04.0 4.0

    Things I liked:

    This is an awesome upgrade. I did it because my spring broke (after merely 1500 or so rounds) - and honestly, I'm glad it did. Rather than send it to GAMO which can take months, I'e heard, I sent it to Pyramid for this conversion. Like everybody else writes, it results in a much tighter mechanical action. THUMP, no twang, the rifle recoil is a nice solid kick, rather than the 'toylike' (for lack of a better way of putting it) spring feel, twist-twang-doublerecoil. The gun (GAMO WHISPER) is quieter than it was, though not silent. I think it is now about as quiet as it can get. It has changed the characteristics of the gun; pellets that worked well before don't work as well now. I have found that heavier pellets work better. 8.64 GR seems to be the magic spot. <8 is erratic. Because there is no twang sound, you can actually hear the pellet hit the target. At first, I wasn't sure if this was because the pellets were moving slower - I don't have a Chrony, but putting a PBA in the gun resulted in that sonic CRACK, which means that speeds are the same or increased as compared to the Spring. Unlike what others say, i think it IS definitely harder to cock the gun now. Side by side with another (springer) Whisper, confirmed this for me. Pyramid does a quick turn around and sends back the spring (or piece of the spring in my case) in a sealed plastic bag.

    Things I would have changed:

    I wish Pyramid would allow people to do the conversion. I'm very mechanically adept with the proper tools and sending the gun away for a (admittedly brief) 10 days, killed me. I was literally tracking it twice a day. Wish the price were less overall. I hope it lasts. Pyramid should replace the plastic linkage spacer that sits on the cocking mechanism. It was worn and cocking the gun really was grinding metal until I hand fashioned a piece out of (delrin) plastic.

    What others should know:

    If you're buying a Whisper, save the time and effort and buy a nitro-piston straight away. With shipping, etc, this upgrade cost me over 200 bucks -- 2/3 the cost of buying a NITROPISTON Whisper outright. With this piston, a GRT trigger, replaced linkage spacer, and good scope (I put a HAWKE Airmax scope on the gun) the WHISPER becomes seriously good gun. However, you COULD save money by getting the new IGT Whisper straight away. Supposedly, it has a new improved trigger and the gas ram. WIN WIN. If you already own a Whisper and are thinking about upgrading - do it, you won't be disappointed. Accurate shooting is still very determined by the hold on the gun and how you squeeze the trigger - I'm noticing that I have a tendency to pull the gun to the right slightly as I squeeze the trigger. Working on correcting that. Check shipping - UPS GROUND cost over 100 bucks from CA.!! I think USPS would be cheaper. Buy a cheap (25.00) hard plastic gun-case at a local sporting goods store for shipping. It's cheaper than paying to have it boxed and then you'll have an extra case.

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    This is the best thing that has ever happened to my gun. I got the nitro piston in my Gamo cfr and I am not regretting it. The accuracy, the cocking and the shooting have all changed dramatically in a very positive way.

    Things I would have changed:

    Nothing.

    What others should know:

    If you are wondering whether or not to buy the nitro piston buy it!! It will change everything about your gun.

  • Rating 4.04.0 4.0

    Rating 4.04.0 4.0

    Things I liked:

    Very fast turnaround from Pyramyd. I shipped my Gamo Silent Cat on a Tuesday and received it back the following Tuesday. Kudos to them! The gun finally feels the way that I wish it had right out of the box with this mod. Cocking is smooth and linear. Recoil is a short, not too heavy backwards push. The gun now doesnt vibrate all over the place after you pull the trigger. Also, loving the fact that I can cock and load it then leave it sitting until those pesky squirrels decide to show up to eat in my wifes garden.

    Things I would have changed:

    Not sure...yet. I've got maybe 50 pellets through it so far. As of yet, I can say that it is just as loud as it was when the spring was in place just a different sound now. If it doesn't quite down more after another 200 pellets or so then I'm going to try a recommendation to put some sound deadner in the stock. By the way, I'm not saying it is loud just not as quiet as I would ultimately like it. I can still shoot and plink in the back yard without my neighbors knowing that I am doing so.

    What others should know:

    Overall, it is a great conversion. With that said, I am a little on the fence about one aspect of the conversion though. I cannot tell if FPS has dropped or increased after the conversion. I didn't chrono the gun before I had it converted which I should have. What I am also wondering is that Gamo and Crosman are advertising guns with the Nitro Piston conversion with many different FPS ratings for guns that are shooting the same caliber. So now I'm wondering where the piston that I received falls in the FPS pecking order. With all that said, I would still do it again I think.

  • Rating 4.04.0 4.0

    Rating 4.04.0 4.0

    Things I liked:

    Fast turn around 11 days, big difference in gamo whisper deluxe. dont think FPS is any better after 200 shots, but alot smoother cocking and no spring noises.

    Things I would have changed:

    price

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    I am very happy with the quality and how it performs. I hate that "TWANG" noise when a regular pellet gun is fired. I will not even own one now that does not have the "NITRO PISTON!" I have a Ruger gun to send now if you can put one in the gun.

    Things I would have changed:

    Lets not change "ANYTHING!!!!"

    What others should know:

    This "REALLY" improves the performance of the pellet gun!!! Everyone should try one!!

  • Rating 5.05.0 5.0

    Rating 5.05.0 5.0

    Things I liked:

    It virtually eliminated the shock and "twang" of the spring piston in my Gamo Whisper. My Gamo now shoots more consistent than it did with the spring piston. If/When you decide to get the conversion, which I highly recommend, you may want to try some "heavy" pellets. My gun shoots the Crosman Premier Heavy 10.5gr and the H&N Baracuda Hunter 10.34gr the best while the Crosman Premier hollow points 7.9gr shoot well also. The big thing I've noticed is that the Whisper shoots better with pellets that fit kinda snug in the barrel. If you are a hunter then the Nitro Piston is a needed upgrade in that you can leave the gun cocked to long periods of time.

    Things I would have changed:

    Would be nice to chronograph the gun before and after the conversion. Overall I have no complaints about the product or transaction.

    What others should know:

    It took about 2 weeks between sending and receiving the rifle. This is a conversion that I highly recommend because it makes spring piston guns more fun to shoot.

  • Rating 4.04.0 4.0

    Rating 4.04.0 4.0

    Things I liked:

    Less vibration when firing.

    Things I would have changed:

    Nothing

  • Rating 4.04.0 4.0

    Rating 3.03.0 3.0

    Things I liked:

    It lives up to all the claims - smoother, quieter and more consistency on the target

    Things I would have changed:

    none

    What others should know:

    give it 100 rounds to break in and to get accuracy

  • 123 Next

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