Bolt Carrier Group M4 GBB Reinforced -Original Parts- (Original Parts) MK18 /VR-16 /SR-16 VFC

For VFC M4 /VR-16 /SR-16 GBB series, no version difference.
Compatible with VFC M4 V2 and M4 V3 GBB system.
Required to DIY ability.

Specifications:
● Product Brand : VFC (Taiwan)
● Material : Zinc Alloy, Steel.
● Weight : 185g (full parts)

Features:
● Zinc alloy bolt carrier.
● Steel gas key, nozzle guide, fore block.
● Reinforced steel fore block for durable bolt locking function.
● With new, screw less steel feed nozzle guide.