Date: 9/2/2016 21:55

Crosman Nitro Piston Conversion, Fits Many Newer Gamo Rifles


1-year limited warranty

Buy and Earn 100 Bullseye Bucks!


List Price $139.99 Save $40.00 (28%)

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  • Description
  • Customer reviews
  • Q & A: 23 answered questions
  • feature icon
    Nitro Piston powerplant

You will be charged shipping during the checkout process. That's the charge to send your gun back to you after installation (if you opt to have us install it).


Send your airgun to:
Crosman Nitro Piston Installation
5135 Naiman Parkway
Solon, OH 44139

The perfect upgrade for your Gamo Whisper air rifle.


  • Crosman Nitro Piston conversion
  • Fits Gamo Whisper-series, Hunter Sport, Varmint Hunter, Big Cat & Shadow Sport made in 2010 or later!
  • Maintains same velocity as the metal spring
  • Smoother cocking
  • Smoother shooting
  • 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
  • Installation is included in the price!
  • All internal parts removed for this conversion will be sent back with your gun (if you opt to have us install the conversion)

Note: silver cylinder pictured is not included on item.

For professional installation only, no instructions provided. 



In stock

Item Code: CR-PYRG-001 [PY-A-2103]

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4.0 4.0

5.0 5.0

By Frank from USA on 2014-03-29
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Things I liked: Smoother operation.

Things I would have changed: Considerably more effort to cock.

5.0 5.0

5.0 5.0

By Paul from USA on 2014-02-13
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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.

5.0 5.0

5.0 5.0

By Cameron from USA on 2013-10-17
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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!

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  • Desmond from USA asked:

    Will this fit the BSA polaris .22 2014 model which i believe is the same as the gamo cfx just with a different trigger assembly?

    • Juganaru from Romania asked:

      Will it fit to a Gamo CFX .22 caliber from 2012??? Thank You!

      • Robert from USA asked:

        I see answers both yes and no as to whether it will fit a Gamo Hornet. Has anyone confirmed this one way or the other?

        • Chevota from USA:

          If you're willing to take it apart and send pix of the insides I can give you my thoughts on it. chevota at hotmail. If it's like a generic Crosman (like an Optimus) then I can explain how to install a nitro spring yourself for pretty cheap if you're willing to do a little work. If not I'd just buy a nice Vortek coil spring and call it good, which is also very cheap. This nitro for $100 + a ton of shipping charges will be much more than the gun is worth.

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