Originally Posted by KoreanPump
NOOO! Its because of the main spring. Just get a Maddman spring kit and replace it, it will be quiet AF! NOT THE BOLT OR BARREL PROBLEM. PLEASE READ THIS!
jesus christ, calm down
It's because of the lower tube.
The valve is low flowing with a simple design, which contributes to that. The springs add on to it.
Find yourself a 32* or Maddmann spring kit. Use the medium one in there as the valve spring, and the softest as the mainspring. Or I believe that's what the combo was supposed to be.
Then find a nice valve.
Maddmann, NDZ, and AKALMP all make phenomenal valves. The best of which I believe to be the AKALMP Tornado valve. Finding it used may be cheaper, just make sure it's a spyder or 11/16 valve.
just by doing that, you should see the gun shoot FAR smoother and MUCH quieter, and at the same time have a HUGE leap in FPS.
If you have a regulator, use that, if not, then use the velocity adjuster to readjust the marker to shoot at proper speed, then enjoy.
If you care to go any farther in upgrading, look for a nice regulator (Bob Long Torpedos are amazing, WAY better than a CP reg, will last longer, are more comfortable, and are much higher performance).
Then you can top it off with a nice single finger trigger frame, or adjust the travel of the trigger on your frame for a shorter pull.
Lastly, see what you can do for the feedneck and bolt.
Oh crud, I've made this an upgrade-a-thon again.