Posted 03 November 2007 - 01:10 PM
The firing pin is probebly being pulled back prematurely. What happens is that, since the pump, tank, and barrel are all connected in a line, moving the pump can move the rest of the assembly slightly. That may be just enough to pull back the firing pin and crack open the valve, since the trigger will not move with the pin. Glue the assembly into the gun or glue PVC spacers onto the parts to prevent this from happening.
The only commonly shared fate among us all is death. I turn to the shadows so that I may not be unfamiliar with hell's corridors when I arrive. - SHADOW HUNTER ALPHA
Founder of the Shadow Militia.
Founder of Nightshade Laboratories and The Nightshade Armament Corporation.