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PY-1782-3637
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Description
The special Gamo Viper Express shotshells are sized just for this .22-caliber bore. Because the loading port is sized for the shotshells, .22-caliber pellets will be loaded into a special chamber adapter you'll insert before loading. But you'll be able to quickly change back and forth between the shotshells and pellets by inserting or removing the pellet adapter.
The front sight is a bead. But we suggest that you mount a good-quality scope to extract max accuracy and help acquire further targets.
You should get 750 fps when shooting pellets and 725 fps with shotshells. You'll get 1/4" penetration into 200-lb. compressed paperboard.
The greatest benefit of this shotgun/rifle combo is the versatility that you can't find on other airguns. It's like getting two guns for the price one.
- Shop related categories: pellet guns, pellet rifles
- Gamo Viper Express air shotgun and rifle
- Crosman Nitro Piston gas-piston powerplant conversion
- Breakbarrel
- Single-shot
- Smoothbore
- Bead front sight (no rear sight)
- 2-stage adjustable Smooth Action Trigger (SAT)
- All-weather synthetic stock
- Ambidextrous Monte Carlo stock
- Ventilated rubber buttpad
- 11mm scope grooves
- Shoots .22-caliber pellets or .22-caliber shotshells filled with No. 9 shot
Here are the benefits of getting a Gamo Viper Express with a Crosman Nitro Piston conversion:
- Smoother cocking
- Smoother shooting
- Less recoil
- No spring torque
- No spring fatigue, even if you leave it cocked for hours
- Functions perfectly in cold weather
- Lasts longer than a metal spring
- Installed by our expert gunsmiths!
- NOTE: Gas-spring installation delays shipment by 24 hours (or one business day)


Specifications
Overall Rating
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10 of 17 Gamo Viper Express Nitro Piston Reviews
I like the nitro piston,the light weigh and shotshells. The gun is easy to carry. I work in an orchard and we have a starling woodpecker and sparrow problem this time of year. They birds don't stay still very long just a few seconds so a scooter riffle isn't ideal this little shotgun is very quick to aim and catch them for that second they stand still or as the try to dart away.
Things I Would Have ChangedThere isn't much I would change, maybe the color. All my guns are camo depending on where and what I hunt. Even birds are weary of a strange black object waving around. This one will most likely be painted a few shades of green and brown to blend better into the orchard. I think having fiber optic sights would be nice atleast the bead. I set all my shotguns up with fiber optic riffle sights. This having a vent rib makes it easy to install Hi-Viz turkey sights
What Others Should KnowThis gun is a small shotgun 10-15 yard gun. Ideal between 5-10 yards. It's not a 12g so don't expect that. If you are like me and like to use 410 then you will like this one. I feel comfortable taking pigeon sized birds at 10yrds even rabbits or squirrel at that range. Wish I had bought this sooner. Would have made the iradication of pigeoo from the packing shed quicker as they moved to the rafters in the. building and to close for quick riffle acquisition in dark tight quarters
I like the shotgun
That it can shoot shot shells & pellets.
Things I Would Have ChangedAt this point, I can't think of anything.
What Others Should KnowShot shells for this gun are expensive.
Gamo Viper Shotgun with nitro Modification is assume so it can stay cocked longer. So far 50 rounds expelled Effective Range of use so far has been up to 15 yards. Gun does not have any real kick to it. over weight is perfect. Shoulders on the fall and the light weight flows shooting on the move.
Things I Would Have ChangedGun is loader than I wanted for my air gun. The shot shell could be a bit bigger or should I say more balls to shot shell, it would nice for different sizes based on your distance shooting or make the gun in a 25 caliber. I wish the stock was adjustable. I bought the gun for my son that's 12, shorter stock he could adjust as he grows would make this gun a must have.
What Others Should KnowSpeed of shot is still slower then I thought, You will have to plenty of practice with moving target to figure your lead when shooting, ball spread is a foot trail at 15 yards. Shells are
This pellet gun hybrid shoots accurately for being a smooth bore at about 15 to 20 yards. The miniature shot shells disintegrate invasive insects!
Things I Would Have ChangedI would make price lower for shells.
What Others Should KnowIf using pellets REMEMBER to use brass adapter or you can ruin the air gun. shot shells should only be used on small critters at 10 yards maximum.
I was truly impressed by the power and the range of this rifle. It is a much smoother cocking effort than other rifles I have had. Even with just having shoulder surgery it was quite easy to cock and ready to fire. It had decent shot grouping at about 10-12 yards, enough to bag small game. The .22 pellet firing is a little more difficult without a rear sight but you may be able to get around that if you are a little more industrious.
Things I Would Have ChangedI would definitely add a rear sight for use with pellets.
What Others Should KnowAlthough you can reload the shotshells as evidenced in some videos, it will definitely not give you the same power response as the store bought shot shells. In fact it makes it more dangerous because without the same power you run a greater chance of ricochet back at you. Stick with the store bought ones.
NICE LOOKING AIR GUN ... VERY WELL BUILT... QUIET SHOOTING
Things I Would Have ChangedSHOT SHELLS ARE TIGHT AND SOMETIMES TUFF TO GET OUT
I waited until I could make an accurate report. I have had to reload the shells with 7 1/2 shot with 21 shots per shell to make the gun more accurate and lethal. The #9 is no good. I use foam hobby paper and a hole punch to make the air cup by sticking two together with nail polish (clear) . Then I put a little polish around the inside rim and then insert the foam pad into the base. For this I use a Bic pin empty ink straw the foam pad forms air tight seal for no loss of power and a single foam pad on the muzzle end of the shell to hold the pellets in. The range is lethal at 12 yrds. I have already harvested a cotton tail rabbit and ground squirrels. The adapter for the 22 cal pellet that comes with the gun works perfect. The gun has plenty of power and then some to punch a hole right through the bottom of a empty shaving can at twenty yards, which is pretty tough steel. I mounted a Beeman 3x9 scope on it and wow. With my reload I get ten to twelve shot in a four inch area
Things I Would Have ChangedHave the shells come with 7/1/2 shot.
What Others Should KnowMy scope railing came loose but I tightened one screw the last one at butt end and no problem.
Very easy to aim and shoot. Good for rodent control. Good for pesty bird control. Alot Quieter than a 410 shotgun.
Things I Would Have ChangedPut a laser type device on barrel for aiming purposes.
What Others Should KnowI think it is a very good effective air gun.
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Jul 07, 2023
By Kimberly
Light weight, quiet, sleek and easy to aim with the front bead. Haven’t played with pellets too much tho I’m looking forward to round ball. The ability to reload the shells with custom shot is a big selling point for me. I can use tungsten or lead or even copper bb’s and get a cone of destruction down range. Power isn’t jaw dropping but neither is a standard break barrel, it’s fine for small pests and a blast for plinking.
Things I Would Have ChangedSeeing a second barrel or a larger power plant would have been ideal. Gamo has several multi-shot breakers and the ability to literally snap and shoot a handful of #7’s down range would take this from a Good gun to a Great one.
What Others Should KnowYou can reload Shot shells but the seal is the hardest part to replicate. I’ve been using cleaning wads and packing foam, using the brass insert to cut the foam. You can shoot 4 .177 bb’s or rat/ bird shot,, etc. “buck and ball” is my favorite so far: 2 BB’s and 12 tungsten #7’s.
If you like to tinker and plink, this is great.