Phase 5 M16/M4 Bolt Carrier Group 5.56x45mm NATO Black Phosphate

The Phase 5 BCGM16 is a bolt carrier group for AR-15 pattern rifles chambered in 5.56x45mm NATO. It is intended to serve as the reciprocating bolt assembly that cycles the action in M16 and M4 pattern rifles.

The group is finished in black phosphate and is listed with a stainless steel material, an overall length of 7.5 inches, and an M-16 profile. The raw listing also describes a heat treated, chrome lined inner body and a C158 bolt. The complete assembly includes the cam pin, firing pin, gas key, and bolt.

Because the group is listed for the 5.56 NATO chambering, it is designed for rifles set up for that cartridge. Check the listing's compatibility details before fitting it to a rifle chambered for a different cartridge.

• Brand: Phase 5 Weapon Systems
• Model: BCGM16
• Platform: AR-15 (M16/M4 pattern)
• Caliber: 5.56x45mm NATO
• Material: Stainless Steel
• Finish: Black Phosphate
• Color: Black
• Overall Length: 7.5 in