|Platform||GAS & CO2|
|Net Weight (kg)||0.11|
GHK M4 GBB High Cycle & Speed Bolt Kit - Black
The GHK high-speed high-cycle bolt and spring set is designed to be a drop-in upgrade set that supercharges your GHK M4 GBBR. The bolt carrier group is ultra-lightweight and the spring strength is perfectly in tune to ensure a rapid cycling response with every pull of the trigger!
- GHK M4 Series GBBRs
- x1 GHK M4 GBB High Cycle & Speed Bolt Kit - Black
- x1 Buffer
- x1 Spring