CMMG145480071
Cmmg Dissent Mk4 Brace 9Mm 6.5 Armor Black$1,879.48
Availability: In Stock
Current Stock: Out of stock
The CMMG Dissent Mk4 Braced 9mm is a compact, AR-platform pistol built around CMMG's proprietary Mk4 design and available in a 10.5-inch configuration. If you're looking for a 9mm AR pistol that handles like a rifle but stays nimble in tight spaces, this one delivers the familiar controls and ergonomics of an AR in a form factor that's genuinely handy for home defense, truck guns, or range duty. The Dissent uses a radial delayed blowback operating system housed entirely in the upper receiver, which means no AR buffer tube to complicate the receiver extension—instead you get a 1913 Picatinny rail end cap that accepts an arm brace or other stabilizing device.
Chambered in 9mm, the Dissent runs CMMG's own 30-round magazines through a standard AR15-pattern magwell, so ammunition and mags are easy to source and swap. The 10.5-inch barrel (4140CM steel, 1:10 twist) pairs with a CMMG ZEROED linear compensator threaded 1/2 x 28, keeping recoil and muzzle rise manageable in a shorter package. The side-charging handle is mounted left-hand, giving you smooth bolt manipulation without taking your eyes off target or breaking your grip. Build quality is solid: 7075-T6 aluminum upper and lower receivers, Cerakote finish in Armor Black, and a complete set of CMMG ZEROED controls—trigger guard, safety, and grip—that make operation intuitive for shooters familiar with AR ergonomics.
The 9.6-inch proprietary CMMG handguard keeps things tight without sacrificing rail space for mounting lights, lasers, or iron sights. The included drop-in single-stage trigger is clean and breaks crisply. Two 30-round magazines come in the box, so you've got immediate capacity right out of the door. Whether you're running it as an SBR with a proper stock or as a braced pistol, the Dissent Mk4 9mm punches above its size.
| Platform | Mk4 |
| Caliber | 9mm |
| Barrel Length | 10.5 inches |
| Barrel Material | 4140CM Steel |
| Barrel Twist | 1:10 |
| Barrel Contour | MT |
| Operating System | Compact Action-Radial Delayed Blowback |
| Muzzle Device | CMMG ZEROED Linear Compensator |
| Muzzle Thread | 1/2 x 28 |
| Upper Receiver | DISSENT 9mm, 7075-T6 Aluminum |
| Lower Receiver | Mk4 Forged, 7075-T6 Aluminum |
| Handguard | CMMG 9.6-inch Proprietary |
| Finish | Cerakote, Armor Black |
| Charging Handle | DISSENT Side Charger, Left-Hand, Non-Reciprocating |
| Pistol Grip | CMMG ZEROED |
| Receiver Extension | 1913 Picatinny Rail End Cap |
| Trigger | CMMG ZEROED Drop-In Single Stage |
| Trigger Guard | CMMG ZEROED |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Magazines Included | Two 30-round CMMG 9mm |
| Magwell | Standard AR15 Pattern |
The Dissent uses a standard AR15-pattern magwell and is compatible with CMMG 9mm AR conversion magazines. Two 30-round magazines are included with the pistol.
No. The radial delayed blowback operating system is contained entirely in the upper receiver, eliminating the need for a conventional AR buffer system. The receiver extension features a 1913 Picatinny rail end cap, which allows you to attach an arm brace or stock as desired.
The Dissent Mk4 comes with a left-hand side charging handle that is non-reciprocating, allowing you to operate the bolt smoothly without taking your sight picture off target.
Yes. The 9.6-inch proprietary CMMG handguard provides mounting options, and the receiver extension includes a 1913 Picatinny rail end cap for attachment of braces, stocks, or other accessories.
SKU: 145480073 • Weight: 9.27oz
Availability: In Stock
Current Stock: Out of stock
The CMMG Dissent Mk4 Braced 9mm is a compact, AR-platform pistol built around CMMG's proprietary Mk4 design and available in a 10.5-inch configuration. If you're looking for a 9mm AR pistol that handles like a rifle but stays nimble in tight spaces, this one delivers the familiar controls and ergonomics of an AR in a form factor that's genuinely handy for home defense, truck guns, or range duty. The Dissent uses a radial delayed blowback operating system housed entirely in the upper receiver, which means no AR buffer tube to complicate the receiver extension—instead you get a 1913 Picatinny rail end cap that accepts an arm brace or other stabilizing device.
Chambered in 9mm, the Dissent runs CMMG's own 30-round magazines through a standard AR15-pattern magwell, so ammunition and mags are easy to source and swap. The 10.5-inch barrel (4140CM steel, 1:10 twist) pairs with a CMMG ZEROED linear compensator threaded 1/2 x 28, keeping recoil and muzzle rise manageable in a shorter package. The side-charging handle is mounted left-hand, giving you smooth bolt manipulation without taking your eyes off target or breaking your grip. Build quality is solid: 7075-T6 aluminum upper and lower receivers, Cerakote finish in Armor Black, and a complete set of CMMG ZEROED controls—trigger guard, safety, and grip—that make operation intuitive for shooters familiar with AR ergonomics.
The 9.6-inch proprietary CMMG handguard keeps things tight without sacrificing rail space for mounting lights, lasers, or iron sights. The included drop-in single-stage trigger is clean and breaks crisply. Two 30-round magazines come in the box, so you've got immediate capacity right out of the door. Whether you're running it as an SBR with a proper stock or as a braced pistol, the Dissent Mk4 9mm punches above its size.
| Platform | Mk4 |
| Caliber | 9mm |
| Barrel Length | 10.5 inches |
| Barrel Material | 4140CM Steel |
| Barrel Twist | 1:10 |
| Barrel Contour | MT |
| Operating System | Compact Action-Radial Delayed Blowback |
| Muzzle Device | CMMG ZEROED Linear Compensator |
| Muzzle Thread | 1/2 x 28 |
| Upper Receiver | DISSENT 9mm, 7075-T6 Aluminum |
| Lower Receiver | Mk4 Forged, 7075-T6 Aluminum |
| Handguard | CMMG 9.6-inch Proprietary |
| Finish | Cerakote, Armor Black |
| Charging Handle | DISSENT Side Charger, Left-Hand, Non-Reciprocating |
| Pistol Grip | CMMG ZEROED |
| Receiver Extension | 1913 Picatinny Rail End Cap |
| Trigger | CMMG ZEROED Drop-In Single Stage |
| Trigger Guard | CMMG ZEROED |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Magazines Included | Two 30-round CMMG 9mm |
| Magwell | Standard AR15 Pattern |
The Dissent uses a standard AR15-pattern magwell and is compatible with CMMG 9mm AR conversion magazines. Two 30-round magazines are included with the pistol.
No. The radial delayed blowback operating system is contained entirely in the upper receiver, eliminating the need for a conventional AR buffer system. The receiver extension features a 1913 Picatinny rail end cap, which allows you to attach an arm brace or stock as desired.
The Dissent Mk4 comes with a left-hand side charging handle that is non-reciprocating, allowing you to operate the bolt smoothly without taking your sight picture off target.
Yes. The 9.6-inch proprietary CMMG handguard provides mounting options, and the receiver extension includes a 1913 Picatinny rail end cap for attachment of braces, stocks, or other accessories.
SKU: 145480073 • Weight: 9.27oz