Compatible With GHK M4 /MK18 /RIS /MK16 GBB Series!
Bolt carrier ONLY, loading nozzle(#M4-15) and guide(#M4-16) buy separate.
Bolt carrier Black/Silver two colors opitional.
- For GHK M4 GBB
- Material : Aluminum Alloy CNC, Steel.
Product content:
Aluminum CNC Bolt Carrier(M4-KIT-03-1) x1
Reinforce Recoil Spring(M4-KIT-03-2) x1
Aluminum CNC Buffer(M4-KIT-03-3) x1
- Improve of rate of fire(ROF).
- Improve the reaction speed of semi-auto, a must for competition shooting.
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