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CMMG
Overview
The CMMG 6.5 Grendel or 6mm Arc AR-15 Complete Bolt Carrier Group is designed for multi-caliber use, providing versatility for builders looking to experiment with different ammunition types. With a phosphate finish, this bolt carrier group offers durability and corrosion resistance, making it a reliable choice for various shooting conditions. This BCG commonly appears in builds utilizing a mid-length gas system and is often paired with .308 Winchester caliber setups, ensuring compatibility and performance across a wider range of applications.
Specifications
CMMG 6.5 Grendel or 6mm ARC AR-15 Complete Bolt Carrier Group
Available Merchants(5)
Prices checked
Price Alert
Build history on GunPartPicker
Builders on GunPartPicker first added the CMMG 6.5 Grendel or 6mm ARC AR-15 Complete Bolt Carrier Group to a build in February 2026.
Today 3 of the 5 retailers we track have it in stock. Buying today, the lowest price is $179.99 at Palmetto State Armory.
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