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

Short, agile, and ready for close work — the CMMG DISSENT MK4 9mm 10.5" is a 9mm AR-15 pistol configuration built for tight spaces, vehicle storage, and applications where a full-length rifle is too much.

Built as a semi-automatic AR-15 pistol around 9mm and a direct impingement system, the CMMG DISSENT MK4 9mm 10.5" delivers a proven AR-15 experience from first round to last.

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: 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

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.

Type III Hardcoat Anodized over 7075 aluminum construction gives this AR-15 pistol solid corrosion resistance and a durable surface that holds up across a wide range of storage and operating 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.