TAGinn HPA/CO2 "FIST-2" Filling Station Pistol Builds and Upgrades The Pro Arms recoil spring

The Pro Arms recoil spring for the VFC/Umarex Glock 19 Gen 4 and Glock 19X is a steel spring upgrade that offers extra recoil impulse for the pistol

At the 2010 SHOT Show

For your G&G Pistols (Piranha) that come with 12mm internal threads

Made of 6061-T6 Aluminum

TAGinn HPA/CO2 "FIST-2" Filling Station Pistol Builds and Upgrades The Pro Arms recoil springFiSt 2 is the filling station for Shell HPA and Shell PRO EVO. This fully redesigned filling adapter has several important improvements: The sealing method has changed: now no O rings will be damaged or blown out during the CO2 tank replacement even if some pressure has left in the chamber. No chance for leaking between nozzle and filling valve even when the weather is cold. The tempered stainless steel nozzle is redesigned to fit perfectly into our