Alex Pro Firearms M16 Bolt Carrier Group 5.56 300 BLK Nickel Boron

The Alex Pro Firearms M16 Bolt Carrier Group 5.56/300 Blackout Nickel Boron offers rugged, military-spec performance for reliable operation in dynamic shooting environments. Crafted by Alex Pro Firearms, this BCG features a SAE 8620 heat-treated nickel boron coated carrier and a Carpenter 158 bolt that is shot peened, heat treated, and nickel boron plated for enhanced hardness and corrosion resistance. The firing pin is Swiss machined and precision ground to ensure consistent ignition, while the gas key is CNC machined, heat treated, chrome lined, torqued, and staked to the carrier with nickel boron plating for durable gas system performance. The cam pin completes the high-precision, nickel boron treatment that helps maintain smooth cycling under strenuous use. Designed to be full auto compatible, this bolt carrier group is engineered to endure rigorous training and demanding field conditions, translating to dependable cycling across 5.56 and .300 Blackout platforms. Whether you're building a rugged duty rifle or a dedicated range rifle, the APF Nickel Boron BCG delivers consistent reliability, smooth operation, and long-term durability to support precise follow-up shots and sustained performance in a variety of shooting scenarios.