CMMG DISSENT MK4 9mm 6.5" - AR-15 Pistol

When compactness is the priority, the CMMG DISSENT MK4 9mm 6.5" delivers 9mm AR-15 performance in a pistol-format configuration built for maneuverability without sacrificing reliability.

A semi-automatic AR-15 pistol chambered in 9mm, the CMMG DISSENT MK4 9mm 6.5" combines direct impingement operation with standard AR-15 architecture for straightforward reliability.

Lower Recoil, Better Follow-Ups: 9mm in a carbine platform delivers noticeably softer recoil than rifle cartridges, making faster, more accurate follow-up shots easier across extended strings of fire.

Ammunition Economy: 9mm ammunition is typically more affordable per round than centerfire rifle cartridges — an advantage that adds up quickly across training sessions and competition.

Unified Ammunition Logistics: Shooters who carry 9mm handguns can standardize their ammunition supply across pistol and carbine, simplifying what you buy, store, and carry to the range.

Home Defense Versatility: The carbine format offers more stability and better accuracy potential than a handgun alone, while 9mm keeps overpenetration risk lower than rifle cartridges in close-quarters use.

• Caliber: 9mm
• Barrel Length: 6.5"
• 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

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.

The upper and lower receivers are constructed from 7075 aluminum with a Type III Hardcoat Anodized finish — a durable combination that resists corrosion and maintains tight tolerances over an extended service life.

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.