KAK Industry AR-15 M16 Bolt Carrier Group – 5.56 NATO K-SPEC FDE

The KAK Industry AR-15 M16 Bolt Carrier Group delivers reliable cycling in 5.56 NATO chambered AR-15 rifles and carbines. Built to M16 full-auto profile specifications, this BCG provides increased carrier mass for enhanced reliability with suppressed or short-barreled uppers, though it functions equally well in standard configurations. The K-SPEC designation indicates KAK's quality control standards for materials and machining tolerances.

Constructed from 8620 steel with a Cerakote Flat Dark Earth finish, this BCG resists corrosion while reducing friction for smoother operation. The gas key is properly staked and sealed. This is a drop-in component for any mil-spec AR-15 lower receiver and upper assembly—no gunsmithing required. Routine maintenance follows standard AR-15 cleaning procedures.

• Part Type: Bolt Carrier Group (M16 Profile)
• Compatible Firearms: AR-15 rifles and carbines chambered in 5.56 NATO / .223 Remington
• Material: 8620 Steel
• Finish: Cerakote Flat Dark Earth (FDE)
• Installation: Drop-In
• Includes: Assembled bolt carrier group with bolt, cam pin, and firing pin