CMMG BCG AR15 6.5GRN/6MM ARC

CMMG BCG AR15 – 6.5 Grendel / 6mm ARC

The CMMG AR15 Bolt Carrier Group for 6.5 Grendel and 6mm ARC is a precision-engineered BCG designed for superior function, reliability, and performance in your AR-15 rifle. Built from high-grade materials and featuring a durable black nitride finish, this bolt carrier group is ideal for shooters demanding long-range accuracy and consistent cycling in high-pressure calibers.

Optimized for High-Performance AR Builds

Specifically designed for 6.5 Grendel Gen 2 and 6mm ARC cartridges, this BCG ensures proper headspacing, smooth feeding, and reliable extraction. Whether you're building a precision DMR, a hunting rifle, or a long-range competition gun, the CMMG BCG delivers the strength and reliability you need.

Key Features

• Caliber Compatibility: Engineered for 6.5 Grendel (Type II) and 6mm ARC
• High-Strength Bolt Material: Machined from 9310 steel, heat-treated, and magnetic particle inspected (MPI) for strength and durability
• Black Nitride Finish: Enhances corrosion resistance, reduces friction, and ensures smooth cycling
• Full-Auto Rated Carrier: M16-profile for increased mass and performance
• Properly Staked Gas Key: Secures long-term, leak-free operation
• Complete Assembly: Includes bolt, carrier, cam pin, firing pin, and retaining pin

Why Choose CMMG for 6.5 Grendel & 6mm ARC?

CMMG is a trusted name in AR innovation and quality. Their 6.5 Grendel / 6mm ARC BCG is specifically engineered to handle the increased pressures and unique geometry of these long-range rounds, making it the perfect match for your upper receiver.

Precision, Reliability, and Durability

The black nitride finish offers excellent surface hardness, minimizes carbon buildup, and helps extend the lifespan of your BCG. Combined with a high-strength bolt and full-auto rated carrier, this BCG is built to run clean, cycle reliably, and withstand the demands of long-range shooting.

Build with Confidence

The CMMG BCG AR15 – 6.5 Grendel / 6mm ARC is the trusted upgrade for shooters who demand more from their rifle. Whether you're hunting, training, or pushing for tight groups at long distances, this BCG ensures consistent performance and long-term reliability. Add it to your build today and shoot with confidence.