CMMG DISSENT BR5 9mm 16.1" - AR-15 Rifle

Running 9mm in an AR-15 chassis, the CMMG DISSENT BR5 9mm 16.1" gives you reduced recoil, accessible ammunition costs, and a platform that shares controls with any AR-15 you already shoot.

The CMMG DISSENT BR5 9mm 16.1" is a semi-automatic AR-15 rifle chambered in 9mm, built around direct impingement operation for reliable cycling on the AR-15 platform.

Competition Ready: Pistol caliber carbines are a growing force in USPSA and other competitions — this platform is well-suited for PCC-class competition straight from the box.

Reduced Operating Costs: Running 9mm cuts per-round costs compared to rifle ammunition, extending how long you can train on a set budget without giving anything up in terms of practice value.

Familiar AR-15 Controls: Standard AR-15 ergonomics mean any AR-trained shooter can transition to this PCC with minimal adjustment — the same manual of arms, the same muscle memory.

Effective Home Defense: The 16.1" barrel optimizes 9mm velocity for defensive use while the carbine format provides handling advantages over handguns in a home or property defense role.

• Caliber: 9mm
• Barrel Length: 16.1"
• Gas System: Direct Impingement
• Handguard: Free-Float
• Muzzle Threading: 1/2x28
• Magazine Capacity: 10‑Round
• Finish: Type III Hardcoat Anodized
• Origin: Made in the USA

Built on an AR-9 lower pattern with familiar AR-15 controls. Accepts Glock-pattern or COLT SMG-pattern magazines depending on model. Compatible with standard carbine buffer setups.

Receivers are machined from 7075 aluminum and finished with Type III Hardcoat Anodized, providing lasting corrosion and wear resistance under regular use and varied environmental conditions.

A strong pick for USPSA PCC competition, recreational range use, and home defense. Sharing ammunition with compatible handguns simplifies logistics for range trips and everyday carry.

CMMG is recognized for their innovative radial-delayed blowback operating system, a uniquely reliable PCC design trusted by competitors and enthusiasts who demand consistent function. Made in the USA.