REPLACEMENT MAGAZINE GAS FILL VALVE FOR VFC GLOCK G17/G19 GEN.3 GBB PISTOLS OPTICS This is done so that

This is done so that the gun would sit nicely and comfortably to carry on a waistband

Quiet due to soft piston head

mimics the feel of the real life counterpart

Extreme Engineering LiteSpeed Fire Control System

REPLACEMENT MAGAZINE GAS FILL VALVE FOR VFC GLOCK G17/G19 GEN.3 GBB PISTOLS OPTICS This is done so thatProduct Description Features Reinforcement replacement component Brass construction Works for VFC, Elite Force, Spartan, Cybergun and other compatible GLOCK models. (note not for KWC Elite Force KWC Glock models) Compatibility: Spartan Licensed Law enforcement Military GLOCK G17 Gen. 3 Blowback Airsoft Pistol, Umarex Elite Force G17 Gen. 4 series, and other compatible models OEM with VFC GBB system. (Note Elite Force Gen3 Glock is manufactured by KWC