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GHK - High Speed/ROF Upgrade Kit for M4 GBB (Original Parts #M4-KIT-03)

GHK - High Speed/ROF Upgrade Kit for M4 GBB (Original Parts #M4-KIT-03)

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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.

● Product Brand : GHK (Taiwan)
● GHK Original Parts
● 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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