CMMG Dissent MK17 9mm 16.1" Barrel Armor Black Tactical Rifle

The CMMG Dissent MK17 9mm tactical rifle brings practical versatility to the pistol caliber carbine platform. Built on CMMG's proven Mk17 system, this 16.1-inch barreled PCC operates on a compact action-radial delayed blowback system and feeds from standard Sig Sauer P320/M17/M18 magazines—meaning you're not locked into proprietary ammo supply if you already run Sig pistols. The result is a lightweight, maneuverable rifle that handles like an AR-15 but costs considerably less to shoot, making it ideal for plinking, home defense, or introducing shooters to rifle fundamentals without the recoil or noise of centerfire rounds.

The Dissent side-folding stock with adjustable length of pull and cheek riser lets you dial in comfort and handling, whether you're running it in cramped quarters or from a bench. The forward non-reciprocating charging handle won't interfere with your optic or accessories, and the 15-inch proprietary M-LOK handguard with integrated top picatinny rail gives you real estate to mount lights, lasers, or glass. The 4140CM barrel wears a 1:10 twist and threads at 1/2x28 for the included CMMG ZEROED muzzle brake, which works with the ZEROED trigger, grip, and safety to deliver a cohesive, tuned platform out of the box.

At 6.7 pounds and fully collapsible to 25.9 inches, the Dissent fits vehicle racks, backpacks, and truck beds without the footprint of a full-length rifle. Cerakote-finished in Armor Black, it's dressed for duty while the aluminum receivers (7075 T6) keep weight down. Two 21-round Sig P320 magazines ship with the rifle, so you've got capacity and compatibility to match your pistol collection.

Key Features

• 9mm caliber feeds Sig Sauer P320/M17/M18 magazines (2x 21rd included)
• Compact action-radial delayed blowback system—soft shooting, reliable, and shooter-friendly
• 16.1-inch 4140CM barrel with 1:10 twist and CMMG ZEROED muzzle brake (1/2x28 threaded)
• DISSENT side-folding stock with adjustable length of pull and cheek riser
• Forward non-reciprocating charging handle—stays out of the way on target
• 15-inch M-LOK handguard with top picatinny rail for easy accessory mounting
• 7075 T6 aluminum upper and lower receivers
• ZEROED drop-in trigger, pistol grip, and safety selector for factory-tuned performance
• Integrated trigger guard
• Collapsible to 25.9 inches; extends to 35.5 inches at max length
• Weighs just 6.7 pounds
• Cerakote Armor Black finish

Specifications

Frequently Asked Questions

What magazines does the CMMG Dissent MK17 9mm use?

The Dissent MK17 feeds Sig Sauer P320, M17, and M18 magazines—the same popular platform many shooters already own. Two 21-round magazines are included with the rifle.

Is the charging handle ambidextrous?

The DISSENT side charger is reversible, so you can configure it for either shoulder. It's a forward non-reciprocating design, meaning it won't cycle back into your face or interfere with mounted optics.

Can I mount a scope or red dot on this rifle?

Yes. The 15-inch M-LOK handguard includes an integrated top picatinny rail for mounting optics, lights, lasers, or other accessories. The reversible charging handle design keeps clear sightlines for glass.

How compact is the Dissent MK17 when folded?

The side-folding stock collapses the rifle to 25.9 inches, making it easy to store or transport in vehicles, backpacks, or tight spaces. At full extension, it reaches 35.5 inches, and the entire package weighs just 6.7 pounds.