it is a QEV system with a co2 tank now for compressed air, and is piloted by a 1/4" blowgun with an industrial schrader threaded into the 1/8" port, the barrel is 1/2" chrome and has a spring fed magazine, the bolt loads the shell which has a bb or other projectile in it. (can also be used without mag and muzzle loaded for spuds) it uses the trigger mechanism from a .357 magnum to "hammer" the blowgun valve. it has a body of MDF. im just waiting for some parts from the machine shop so the kicker spring ejects. and its shaped like a hk sl8-6. working pressure 400 psi
