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.
By Burke from USA on 2010-06-25 09:52:11
Things I liked: Pyramyd Air has an excellent service department that bent over backwards to help me with the issues we had with trying to install this conversion in my Gamo CFX.
Things I would have changed: Make a gas piston to properly fit and operate in my Gamo CFX.
What others should know: My CFX is an older one and the gas piston does not properly fit mine and was causing the gun to literally tear itself apart. After numerous phone calls and two trips back to Pyramyd Air, they have removed the piston and reinstalled my spring. Unfortunately, the gas piston will not work in all springers.
Things I liked: No more torque, twang, buzz. TIghter groups. Hold sensativity isn't as critical. Consistent power. Easy installation in a Big Cat/Shadow or any Gamo power plant.
Things I would have changed: INCLUDE AT LEAST MINIMUM INSTALLATION INSTRUCTIONS OR A COUPLE OF PHOTOS!!! That's unacceptable this day and age, people. Shame on you Air Venturi and Pyramyd. Nothing but a warrantee card and declaration of non-responsibility was in my box. Found what I needed on the net, but it would have been nice to see one simple photograph that would confirm proper orientation, etc. This is OLD technology. Nothing unique here except for the plastic boot on the butt end - overpriced. Bring the price down to what gas springs are.
What others should know: I'm no airgun snob who would insist his gun fire the same in winter and summer temps. The bbs' are full of them bashing gas spring technology and would have you believe that a mere few degrees will have you shooting completely off target. NOT TRUE! Sure you will see very subtile changes in velocity (and accuracy) as temps change. Just hold over 1/8" on really cold days. It will take a large temp difference before you will notice an accuracy difference -- on the order of 40 degrees or more. And then the performance difference is very very small - a non-issue in my opinion. This mod keeps me picking up and shooting my gun for hours a day. Comfortable, fun, lessened hold sensativity, raised my accuracy, and power has increased and become much more consistent. My gun would only launch 1 out of 10 PBA's supersonic. Now, every shot goes supersonic. Groups have tightened up considerably. I'd have never thought my WallyWorld Gamo could shoot 1/2" 5 shot groups at 20 yards. Occassionaly, a little better. That's what consistent power, and non-hold sensitivity will do for ya-- and that's what this gas spring does. For those that are really into tweeking, tuning, modification, experimentation and have the tools to do so. Go to an autoparts store with your gun measurements and buy 3 or 4 gas springs for the cost of this thing. Then enjoy the fun of experimentation, SAFELY!
Things I liked: This is the best upgrade you can buy for your rifle!!!!! It eliminates that annoying twang and thud from the spring. It makes the gun much smoother shooting.
Things I would have changed: Not a thing !!!!
What others should know: This upgrade will change your gun from a alright gun to Sweet shooting rifle. The effort to cock the gun will increase but worth every pound of it. I believe the velocity of my gun increased as well. If you haven't installed a GRT III trigger, do that also..
Things I liked: Makes the gun shoot alot better.
Things I would have changed: I would not change any think.
What others should know: The has recoil.