The CMMG DISSENT Mk3 is an AR-style pistol built for the AR10-sized platform chambered in 8.6 Blackout. It serves as a compact tactical and range-focused pistol optimized for short-barrel use with a 12.5-inch barrel. The DISSENT Mk3 is offered either as a bare pistol with a 1913 Picatinny rear plate or equipped with an SB Tactical FS1913A aluminum folding brace for users who prefer a braced configuration.
Key Specifications
- The caliber is 8.6 Blackout, designed for AR10-sized performance in a short-barrel package.
- The barrel measures 12.50 inches and carries a black nitride finish for surface hardness and corrosion resistance.
- The barrel is constructed from 4140CM steel and uses a 1:3 rate of twist optimized for the cartridge.
- The pistol ships with two 20-round Magpul PMAG magazines as noted in the manufacturer details.
- The upper and lower receivers are machined from 7075-T6 aluminum on the DISSENT Mk3 platform.
- The handguard is a 11-inch proprietary CMMG design that accommodates standard rail attachments.
- The muzzle device is a CMMG ZEROED Linear Compensator threaded 5/8×24 for accessory compatibility.
- The overall weight is 7.3 lbs and the overall length is 23 inches, reflecting the braced/pistol configuration.
- The fire-control components include a ZEROED Drop-In Single Stage trigger and a 60/90-degree safety selector for control ergonomics.
The DISSENT Mk3 pistol blends AR10-sized components and geometry into a compact, short-barrel platform intended for tactical training, range work, and close-range precision tasks. Its materials and component choices — including 7075-T6 receivers, a nitride-treated 4140CM barrel, and a dedicated muzzle device — prioritize durability and serviceability. Offered with either a 1913 rear plate or an SB Tactical FS1913A folding brace, the Mk3 provides configurability for users who require a compact AR-style pistol with a robust parts package.
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