CMMG M16 Complete Bolt Carrier Group 5.56 NATO / .223 Rem

The CMMG M16 Complete Bolt Carrier Group is a replacement carrier assembly for M16-pattern rifles chambered in 5.56x45mm NATO and .223 Remington. It houses the bolt and cycles the action during firing, feeding each new round from the magazine into the chamber.

The carrier is machined from 8620 steel and the bolt from 9310 steel, both common choices for this component. The assembly has a black phosphate finish. It is listed as a complete group, meaning the carrier and bolt are supplied together.

The group is listed as fitting the M16 platform and is offered in the 5.56 NATO and .223 Remington calibers. Confirm fit with your receiver and existing parts before installation.

• Type: Bolt Carrier Group
• Brand: CMMG
• Model: M16 Complete
• Calibers: 5.56x45mm NATO, .223 Remington
• Fits: M16
• Carrier Material: 8620 steel
• Bolt Material: 9310 steel
• Finish: Black phosphate