The CMMG Dissent Mk4 delivers a compact AR-platform option chambered in .300 BLK for shooters seeking reduced overall length without moving to an SBR. The configuration supports both supersonic and subsonic .300 BLK ammunition, making it appropriate for range training, target shooting, hunting, and home defense scenarios.

The rifle is built to prioritize a compact profile and modular accessory mounting. It is available with custom Cerakote finish options and features the DISSENT side folding stock with adjustable length of pull and an adjustable cheek riser for tailored ergonomics. Controls include a forward non-reciprocating charging handle for manipulation without leaving the shooting position, and the M-LOK handguard with a top Picatinny rail provides mounting points for optics and accessories.

Key Specifications

The caliber is .300 BLK.
The barrel length is 14.5 inches (pinned and welded to 16.1 inches).
The included magazines are two 30-round magazines.
The finish is black.
The stock is a DISSENT side folding stock with adjustable length of pull and adjustable cheek riser.
The handguard is a M-LOK handguard with a top Picatinny rail.
The charging handle is a forward non-reciprocating charging handle.
The platform is an AR-style rifle.

For shooters seeking a compact .300 BLK rifle with modular accessory options and a folding stock, the CMMG Dissent Mk4 offers a balanced package. Buy the CMMG Dissent Mk4 Rifle .300 BLK online today.