Crosman Nitro Piston Conversion, Fits Select Gamo Rifles

Crosman Nitro Piston Conversion, Fits Select Gamo Rifles

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PY-A-3443

1-year limited warranty

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$79.99

List Price $139.99 Save $60.00 (42%)

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  • Description
  • Customer reviews
  • Q & A: 9 answered questions
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 air rifle.

  • Crosman Nitro Piston conversion
  • Fits Gamo Whisper-series, Hunter Sport, Varmint Hunter, Big Cat & Shadow Sport
  • 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)

Remove the buzz, twang and vibration from your spring rifle. Gas springs are known for their reliability and durability.
For professional installation. No instructions are included.

We recommend to purchase this product in combination with this Piston seal

In stock


Item Code: AV-G748119 [PY-A-3443]

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5.0 5.0

5.0 5.0

By David from USA on 2015-08-22
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0.00 ratings

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Things I liked: I had this installed into my older Gamo Viper. This piston exceeded my expectations. I have another Gamo with their IGT system and the Crossman Nitro blows it away. My rifle sounds like a .22 and has awesome power. I may send my other rifle in and have it changed to the Nitro piston.

Things I would have changed: Nothing

4.0 4.0

5.0 5.0

By James from USA on 2015-01-25
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Things I liked: No spring rattle when fired, but seemingly sharper report. Maybe because of no rattle.

Things I would have changed: I'm happy

What others should know: I'm happy

5.0 5.0

5.0 5.0

By Alonzo from USA on 2014-07-31
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4.01 rating

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Things I liked: I had the spring in my 2008 Gamo Varmit Hunter 177 cal replaced with the Crosman Nitro Piston. The Varmit Hunter 177 is advertised to shoot 1000 FPS with lead and 1200 FPS with PBA. The test firing report after the conversion showed 925 FPS with lead ammo. This is a insignificant difference considering you are basically getting a new gun for half the cost of a new one. This is about what I get from my various my 22 cals with PBA. Overall I am very pleased with the results on the my Varmit Hunter. Although the nitro piston costs more than a new spring it is less half the cost of a new gun at$210.. Service and turn round time was excellent. One week. Technical report with gun.

Things I would have changed: Try to reduce V losses.

What others should know: You get your old gun fixed at a fair price plus all the benefits of the Nitro Piston some of which are: There is some noise reduction over the spring version You can leave the gun cocked longer without damage Loss of power was not significant considering benefits

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  • Robert from USA asked:

    Will this work on Umarex Surge ? .177

    • mark from USA asked:

      I have the older Gamo Hunter 440. Will this work?

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      Compatible with Crosman Nitro Piston Conversion, Fits Select Gamo Rifles

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