CMMG DISSENT MK4 300 AAC Blackout 6.5″ 30rd

About this product

The CMMG DISSENT MK4 is a compact AR pistol built around CMMG’s patent‑pending Compact Action that houses the recoil system in the upper receiver, eliminating the need for a buffer tube. It is chambered in .300 AAC Blackout and features a 6.5‑inch free‑floated barrel paired with a 5.5‑inch M‑LOK handguard for a very compact overall package. Controls are ambidextrous and the forward non‑reciprocating side charger can be configured for left or right‑handed operation. Factory finish is Midnight Bronze Cerakote with an aluminum frame and polymer grip.

Key Specifications

• Chambered in .300 AAC Blackout.
• The barrel measures 6.5 inches and is free‑floated.
• The magazine capacity is 30 rounds.
• The package includes 2 magazines.
• The action is Semi‑Auto.
• The finish is Midnight Bronze Cerakote.
• The handguard is a 5.5‑inch M‑LOK design.
• The barrel material is listed as 4140 CM.
• The optic footprint is PICATINNY (optic ready).
• Safety and key controls are listed as Ambidextrous.

The DISSENT MK4 is engineered for users who need a highly stowable, configurable AR‑pattern pistol with modern controls and a short, free‑floated barrel. Its Compact Action architecture and ambidextrous features make it suitable for duty, personal defense, and close‑quarters utility where a minimized profile and modularity matter. With included magazines and an optic‑ready top rail, the DISSENT arrives ready to accept common accessories and to integrate into a range of operational setups.

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