CMMG Mk3 .308 Winchester Bolt Carrier Group, Chrome-Lined 8620 Steel Phosphate Finish 38BA423

Product Description

The CMMG Mk3 bolt carrier group is a complete .308 Winchester/7.62x51mm NATO BCG engineered for Mk3/DPMS-pattern large-frame rifles. Built with durable steel components and finished in black phosphate, it features a chrome-lined carrier to support smooth cycling and long-term wear resistance in hard-use range or duty setups.

Product Highlights

• Complete Mk3 / DPMS-pattern .308 bolt carrier group assembly for large-frame AR platforms
• Black phosphate exterior finish for corrosion resistance and reduced glare
• Chrome-lined carrier to enhance durability and ease of cleaning
• 8620 steel carrier with 9310 steel bolt and S7 tool steel extractor (per published specs)
• Designed for .308 Winchester / 7.62x51mm NATO rifles such as the CMMG Mk3

Specs

• Brand: CMMG
• Manufacturer Part Number: 38BA423
• UPC: 815835012483
• Caliber/Chamber Compatibility: .308 Winchester / 7.62x51mm NATO
• Platform Compatibility: CMMG Mk3; DPMS-pattern large-frame (AR-10/LR-308 pattern)
• Finish: Phosphate (Black)
• Carrier: 8620 steel, chrome-lined
• Bolt: 9310 steel
• Extractor: S7 tool steel

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