Brand: Alex Pro Firearms
Model: AR-15 / M16 Bolt Carrier Group, Nitride
Caliber: 5.56x45mm NATO, .223 Rem, and .300 Blackout
Firearm Fit: AR-15 and M16 rifle/pistol platforms
Carrier Material: 8620 Hardened Steel
Carrier Finish: Black Nitride (Salt Bath Nitride)
Bolt Material: 9310 Steel
Bolt Finish: Black Nitride
Gas Key Material: CNC machined steel
Gas Key Finish: Black Nitride; chrome-lined and properly staked
Weight: Approximately 12.8 oz

Features

The Alex Pro Firearms (APF) Bolt Carrier Group is a complete, mil-spec style AR-15/M16 BCG engineered for reliable performance across 5.56 NATO, .223 Remington, and .300 Blackout platforms. Constructed with a 9310 steel bolt that is heat-treated and shot peened for strength, paired with an 8620 hardened steel carrier, this BCG is built to withstand high round counts and demanding use. The carrier features a properly staked gas key and chrome-lined internal bore, ensuring consistent gas operation and long-term durability. Designed as a complete drop-in assembly, it includes the bolt, carrier, cam pin, firing pin, and retaining pin for straightforward installation. Ideal for new builds or replacements, this black-finished BCG delivers dependable cycling, durability, and compatibility with standard AR-15 platforms.

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