CMMG Dissent MK4 9mm AR Pistol 10.5in Barrel 33+1 Midnight Bronze

Description

CMMG did something clever with the Dissent MK4. By moving the entire action up into the upper receiver, they got rid of the buffer tube altogether, which is why this 9mm pistol wears a flat 1913 Picatinny end plate on the back instead. That opens the door for slings, folding adapters, and other rear accessories while keeping the whole package at just 18.7 inches overall with a 10.5 inch barrel out front. Total weight lands in the four pound range, so it carries and handles like a much smaller gun than the barrel length suggests.

How the Dissent MK4 Handles 9mm So Well

The heart of this pistol is CMMG's radial delayed blowback compact action with a fixed ejector in the upper receiver. That design trims bolt carrier weight, softens felt recoil, and keeps the gun running across the full spread of 9mm loads, from light supersonics to heavy subsonics. Feeding comes from CMMG's 9 AR conversion magazines, which share the same profile as a standard 5.56 mag and load as a true double stack from the feed lips down. No speedloader gymnastics, and your existing mag pouches work fine. This one ships with a 33 round mag, giving you 33+1 on tap.

Dissent MK4 Controls and Furniture

Instead of a rear charging handle, the Dissent uses a forward non-reciprocating side charger, mounted on the left side on this model, so you can run the bolt without breaking your grip or coming off target. The 9.6 inch M-LOK handguard has plenty of real estate for lights and accessories, the safety is ambidextrous, and the flat top rail is ready for whatever optic you want to mount. CMMG also skipped the mil-spec trigger routine and installed a TriggerTech AR-D two stage, plus a Zeroed linear compensator on the threaded muzzle to push blast forward and keep things flat. The Midnight Bronze Cerakote receiver set looks sharp and holds up to real use, and the whole gun is backed by CMMG's Lifetime Quality Guarantee.