The MA Bolt Carrier Group – Auto Version – for your M4 or AR15. Machined to USGI specifications. This M16/M4 Carrier includes the proper Mil-Spec Gas Key. The Gas Key Heat Treated per USGI specifications. The Gas Key is secured to the Carrier with 620 Loctite & OCKS Fasteners, properly staked per Military-Specifications. These properly hardened parts insure a strong staking and proper Gas System functioning. The Bolt Assembly is machined from 9310 Steel, Shot Peened for increased strength and includes Tool Steel machined Extractor and Ejector, Sprinco 5-coil Extractor spring, Sprinco Ejector Springs and is High Pressure Tested and Magnetic Particle Inspected.
AR-15 BCGs
Modern Armory .223/5.56 9310 Bolt Carrier Group Black Nitride – MA-9310-NIT-BCG
Original price was: $159.95.$39.99Current price is: $39.99.
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