The CMMG Dissent Mk4 in 5.56mm (brand part no. 55A1A0BMB) is a smooth-shooting semi-automatic rifle finished in Midnight Bronze, built around a 16.1-inch barrel with a 1:7-inch twist. CMMG fits the DISSENT side-folding stock with an adjustable length of pull and cheek riser, and a forward non-reciprocating charging handle allows quick manipulation without breaking the sight picture. The M-LOK handguard carries a top Picatinny rail, and an adjustable gas block lets shooters fine-tune cycling for their preferred ammunition, whether suppressed or not, running a 60/90-degree CMMG ZEROED safety selector. Among AR-platform rifles in the AR rifles category, the Dissent Mk4 favors shooters who want a compact, tunable 5.56 build in a distinctive Midnight Bronze finish.

Key Specifications

• Chambered in 5.56mm with a 1:7-inch rate of twist.
• Features a 16.1-inch barrel.
• Finished in Midnight Bronze.
• Fitted with a DISSENT side-folding stock, adjustable length of pull and cheek riser.
• Includes a forward non-reciprocating charging handle.
• Wrapped in an M-LOK handguard with a top Picatinny rail.
• Runs an adjustable gas block, tunable for suppressed or unsuppressed use.
• Uses a 60/90-degree CMMG ZEROED safety selector.
• Feeds from a magazine with a 30+1 capacity.

Frequently Asked Questions

Does the stock fold? Yes, the DISSENT side-folding stock adjusts for length of pull and cheek height.

Can the gas system be tuned? Yes, the adjustable gas block lets shooters dial in cycling for their preferred ammunition.

Buy the CMMG Dissent Mk4 5.56 NATO Midnight Bronze

A compact, tunable 5.56 rifle in a distinctive Midnight Bronze finish is exactly what the Dissent Mk4 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.