Cmmg Dissent 45A4C0Fab Mkg 45 6.5 Arblk

The CMMG Dissent 45 MkG is a compact .45 ACP pistol-caliber carbine built on CMMG's buffer-less platform—no buffer tube means no awkward length or weight penalty when you need a serious compact shooter. At just 15.7 inches overall and 4.9 pounds, this is a PDW-class gun that fits the role of a short-range, high-capacity defensive or range tool without the bulk of a traditional PCC. Whether you're setting up a dedicated .45 ACP shooter for precision work at intermediate distance or want a compact, handy alternative to a full-size rifle, the Dissent 45 delivers the stopping power of the classic cartridge in a truly portable package.

The MkG platform uses CMMG's Compact Action-Radial Delayed Blowback operating system, proven reliable in demanding use. The 6.5-inch 4140CM barrel keeps velocities practical for .45 ACP while the 1:16 twist rate stabilizes standard projectiles. The CMMG ZEROED Linear Compensator is threaded 0.578 x 28 and helps tame recoil and muzzle rise. Forged 7075 T6 aluminum receivers—upper and lower—keep the gun light without sacrificing durability, and the Cerakote finish protects against the elements and wear.

Control layout is intuitive: reversible side charger for southpaws, integrated trigger guard, and a CMMG ZEROED 60/90-degree safety selector. The ZEROED drop-in single-stage trigger keeps the shooting experience straightforward, and the 1913 Picatinny rail end cap at the rear gives you mounting options. The 5.5-inch proprietary CMMG handguard balances ergonomics with a compact footprint. Two 13-round Glock magazines are included, so you've got genuine capacity without needing to source rare magazines.

This is a working gun: accurate enough for duty or sport, compact enough to store or transport, and chambered in a round with decades of proven ballistics. If you want the .45 ACP in a modern, un-conventional platform that doesn't demand a buffer tube or stock, the Dissent 45 MkG is worth a hard look.

Key Features

• Buffer-less MkG platform eliminates buffer tube, keeping total length and weight minimal
• Compact Action-Radial Delayed Blowback operating system proven for reliability
• 6.5-inch 4140CM barrel with 1:16 twist rate optimized for .45 ACP
• CMMG ZEROED Linear Compensator threaded 0.578 x 28 for recoil management
• Forged 7075 T6 aluminum upper and lower receivers for strength and light weight
• Reversible side charger accommodates left- and right-handed shooters
• ZEROED drop-in single-stage trigger for clean, predictable breaks
• 1913 Picatinny rail mounting point for optics and accessories
• Includes (2) 13-round Glock magazines
• Durable Cerakote finish

Specifications

Frequently Asked Questions

Is the CMMG Dissent 45 MkG left-hand friendly?

Yes. The side charger is reversible, allowing both right- and left-handed shooters to operate the gun comfortably. The safety selector is also configurable.

What magazines does this gun use?

The Dissent 45 MkG uses standard Glock magazines—13-round capacity. Two are included with the gun.

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

Yes. The gun features a 1913 Picatinny rail end cap at the rear receiver, which accepts standard Picatinny-mounted optics and accessories.

What is included in the box?

The Dissent 45 MkG ships with the rifle, a CMMG ZEROED Linear Compensator already installed, and two 13-round Glock magazines.