VKTR Industries Complete Piston Bolt Carrier Group AR Platform 8.4in Chrome Black

VKTR Industries Complete Piston Bolt Carrier Group AR Platform 8.4in Chrome Black. 5 degrees thus correctly timing the locking and unlocking allowing an additional 2 degrees of dwell time reducing residual chamber pressures and ensuring no contact between the cam pin and receiver wall. The carrier is finished in thin dense chrome for ease of cleaning long term wear resistance and lubricity. The patented enhanced cam pin is engraved with a directional arrow for consistent lock up shot after shot.