GHK M4 GBB High Cycle & Speed Bolt Kit Net-Weight-(g)_914 for maximum strength and lightweight

for maximum strength and lightweight impact protection

Suitable For Action Army AAP01 Series Airsoft Gas Blow Black GBB Pistol Airsoft Guns

well received by world market and environmental friendly sites

Also fit for Most 14mm Counter Clockwise Thread Barrel

fires every shot at 240fps

GHK M4 GBB High Cycle & Speed Bolt Kit Net-Weight-(g)_914 for maximum strength and lightweightGHK M4 GBB High Cycle & Speed Bolt Kit Metal Construction (Ultra Lightweight) Design For Upgrade the Original Parts More Durable The Spring Strength is Perfectly in tune to ensure a Rapid Cycling Response with every Pull of the Trigger Suitable For GHK M4 Series Airsoft Gas Blow Back GBB Rifle