Description
The CMMG DISSENT MK4 is a semi-automatic AR pistol chambered in .300 AAC Blackout. Its Compact Action houses the recoil system in the upper receiver, removing the need for a buffer tube and supporting the pistol’s compact format. The configuration includes a forward, non-reciprocating side charger that can be set up for left- or right-handed operation.
Key Specifications
- The pistol is chambered in .300 AAC Blackout for use with the corresponding ammunition.
- The semi-automatic action uses a Compact Action that houses the recoil system in the upper receiver.
- The barrel measures 6.5 inches for the compact configuration specified by CMMG.
- The frame is made from aluminum to keep the listed construction material straightforward.
- The pistol weighs 76 ounces as listed in the product data.
- The listed sight configuration is none, leaving the optic setup to the user.
- The optic footprint is Picatinny for compatible optic mounting hardware.
- The safety is ambidextrous for operation from either side.
- The pistol includes a 5.5-inch M-LOK (Modular Lock accessory mounting) handguard for compatible accessories.
- The package includes two magazines.
The DISSENT MK4 combines an aluminum frame with a 4140 CM barrel, an adjustable gas block, and a 5/8-24 inch muzzle thread specification. Its rear Picatinny rail section serves as the stated buffer adapter interface, while the forward side charger and ambidextrous controls support flexible handling. We would point this configuration toward shooters who want a short AR pistol format with a compact recoil system and room for their own optic and accessory choices. The CMMG DISSENT MK4 remains the focus.






