Originally Posted by _Boomhower_
The new valve fits and the gun will shoot once, but if the trigger is pulled again rapidly the gun farts and needs to be re-cocked. Totally useless for playing. My best bet is an adapter fitting that fits the ASA side of the stock braided line.
There are 3 possibilities I can think of:
1) Your tank output pressure needs to be raised as close to 950psi that you can get. The best solution is a Ninja SHP reg designed specifically to get the best output pressure for Tippmanns and Automags.
2) If you are using a lightweight hammer, you need to add a weight kit or buy a heavier hammer.
3) If you are using the stock hammer you need a new/stronger drive spring.