CMMG DISSENT MK4 .300 Blackout 6.5″ Pistol
Specs at a glance
About this product
The CMMG DISSENT MK4 is a compact, buffer-less AR pistol built around CMMG’s patent-pending Compact Action, which houses the recoil system in the upper receiver to eliminate the buffer tube. Chambered for .300 AAC Blackout with a 6.5″ barrel, the DISSENT is designed for portability and modularity while retaining AR-style ambidextrous controls. It features a forward non-reciprocating side charger configurable for left- or right-hand operation and an SLR adjustable gas block to tune performance for supersonic or subsonic loads. The MK4 ships with a 5.5″ M-LOK handguard, TriggerTech AR-D 2-stage trigger, and a tungsten gray Cerakote finish on 7075 T6 aluminum receivers.
Key Specifications
- Chambering: .300 AAC Blackout.
- The barrel measures 6.5 inches for compact handling and stowability.
- Operation type: Semi-Auto.
- Finish: Tungsten gray Cerakote.
- Barrel material: 4140 CM steel.
- Muzzle thread pattern: 5/8-24.
- Handguard: 5.5-inch M-LOK free-floated handguard.
- Trigger: TriggerTech AR-D 2-stage optimized for the DISSENT platform.
- Safety: Ambidextrous controls.
- Optic footprint: PICATINNY on the receiver rear rail section.
Compact and purpose-built, the DISSENT MK4 delivers an AR-style control set and tuning options in an ultra-stowable pistol package. Its combination of the Compact Action, adjustable gas system, and a TriggerTech AR-D trigger make it a practical choice for users seeking a reliable, configurable platform in .300 AAC Blackout when compact size and modularity matter.
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Key attributes
| upc | 810097508101 |
| manufacturer | CMMG |
| manufacturer part number | 30A0E33-TNG |
| action | Semi-Auto |
| barrel length | 6.5" |
| caliber/gauge | .300 AAC Blackout |
| capacity | 30 |
| color | TUNGSTEN |
| length | 39.9500 |
| model | Dissent |
| number of magazines | 2 |
| product type | AR |
| safety | Manual Safety |
| shipping weight | 7.8 |
| sights | Optic Ready |
| sights type | NONE |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (or) | NO SALE TO OREGON |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |