Special Price | CMMG M16 Bolt Carrier Group 55BA419 5.56mm Black Phosphate

Specifications

Weight—-0.6pounds

Material—-Steel (9310 bolt, 8620 carrier with chrome lining, 4140 extractor); phosphate finish

WARNING: This product can expose you to chemicals including arsenic, which is known to the State ofCalifornia to cause cancer. For more information, go toWWW.P65WARNINGS.CA.GOV

Product Overview

The CMMG 55BA419 M16 bolt carrier group for 5.56mm AR-pattern rifles is built to Mil-Spec standards with a 9310 steel bolt, an 8620 steel chrome-lined carrier, and a 4140 steel extractor. Finished in phosphate for improved wear resistance and corrosion control, it is designed for reliable operation in 5.56mm builds that use an M16-style BCG.

Key Features

• Mil-Spec style M16 bolt carrier group for 5.56mm AR-platform builds
• 9310 steel bolt for strength and durability
• 8620 steel chrome-lined carrier to support smooth cycling and longevity
• 4140 steel extractor for dependable extraction performance
• Phosphate finish for corrosion resistance and long-term wear protection

Upgrade or replace your AR bolt carrier group with a Mil-Spec configuration from CMMG for consistent performance in 5.56mm setups.