1-year limited warranty
List Price $139.99 Save $40.00 (28%)
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Things I liked: Much improved accuracy, by taking away the recoil characteristics of a metal spring. Able to keep NP powered rifle cocked for extended period of time without possible damage or fatigue of piston. Good power, although possible loss of fps with conversion, but very little at that.
Things I would have changed: The Nitro Piston is not a bad piece of kit. I would like to see if Pyramydair will offer the Hatsan Vortex in the near future. There is really nothing I can think of at the top of my head on what needs changing.
What others should know: I had this installed in my Hatsan 125Th, in .177, and it is like shooting an entirely new beast. The shooting of my rifle took much practice and a consistent hold when the metal spring was installed, but with the NP hold placement is much less sensitive. Accuracy is very much improved.
Things I liked: I replaced the springer in my Walther Falcon Hunter and what a difference it makes. Easer to shoot and more accurate even with open sites. Pyramyd Air made it very easy to get it installed and returned to me. Thank you Pyramyd Air for your great service and technicians.
Things I would have changed: Make them for more air guns.
Things I liked: Nothing! I bought a WFH 22 cal that had this upgrade done to it by PA. These guns are supposed to shoot in the 900 fps range with 14.3 pellets. Mine shoots 750 fps way too slow. This is what my Trail NP shoots and it probably had the same piston installed intop the WFH. Not what it should be. Don't do it.
What others should know: Find some of the new NPistons... by Moller and N Forcer have one of those put in.
Will this work for my Gamo Varmint Hunter HP .177?
I have a WALTER TALON (1400 fps) will this unit work in it and will I keep the same amount of power +/- some.
I have the Hatsan 125 .25 and I thought I would like the spring and I do but I would like to know if I went with the gas ram will it effect my FPS, I love the power that it has its the spring taking a set is why I want the gas ram. Is the Crossman gas ram the same as the Vortex ram?
I've heard people complain it costs them fps, but no first hand experience. My guess is it's the nitro for a Trail XL with those plastic deals added to each end. The Hatsan Vortex spring is no doubt made by someone else but probably similar to the XL spring is size and strength. I would just tune the gun as-is, or tune and replace the spring with a new Vortek spring. That's with a k not an x. It's possible to quiet the spring noise down substantially so really there's no need for a gas spring unless you just gotta have it.