CMMG DISSENT MK4 9mm 10.5" - AR-15 Pistol

The CMMG DISSENT MK4 9mm 10.5" brings 9mm capability to an AR-15 pistol format — compact, versatile, and purpose-built for close-quarters use, truck guns, and shooters who need to move fast.

The CMMG DISSENT MK4 9mm 10.5" brings 9mm capability to a semi-automatic AR-15 pistol, using a direct impingement operating system designed for dependable function in any condition.

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 10.5" 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: 10.5"
• Gas System: Direct Impingement
• Handguard: Free-Float
• Muzzle Threading: 1/2x28
• Magazine Capacity: 33‑Round
• Finish: Type III Hardcoat Anodized
• Origin: Made in the USA

Compatible with AR-9 pattern lower receivers and standard AR-15 controls. Magazine compatibility varies by configuration — consult product specs for Glock-pattern or COLT SMG-pattern magazine details. Designed for carbine or pistol buffer systems.

Machined from 7075 aluminum and coated with Type III Hardcoat Anodized, the receiver set offers durable protection against wear and environmental exposure while maintaining precise fit between components.

Excellent for USPSA PCC competition, home defense, and cost-effective range training. A smart choice for shooters who already own pistols in the same caliber.

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.