CMMG AR-15 .223 Remington / 5.56 NATO Complete Bolt Carrier Group- Black Phosphate Finish

CMMG is constantly looking for new ways to improve their products, processes and company at large. All CMMG parts are made in the United States from the best materials available. CMMG guarantees its products against defects in material or workmanship for the life of the product. 

Complete Mil Spec AR-15 / M16 bolt carrier group.

Features and Specifications:

• Bolt: 9310 Steel
• Carrier: 8620 Steel, Chrome Lined
• Extractor: 4140 Steel
• Finish: Phosphate
• Mil-Spec