CMMG 60AA90C-MB | DISSENT MK4 | 6mm ARC | 16.1″

The CMMG DISSENT MK4 in 6mm ARC is built as a lightweight, flat-shooting AR-platform carbine with features focused on controllability and modularity. It uses CMMG Zeroed components and a DISSENT side-folding stock to preserve AR-15 ergonomics while offering long-range capability in a compact package. For optics, this platform pairs well with a low- to mid-magnification, first-focal-plane scope such as the Vortex Viper PST Gen II 1-6×24 for rapid target acquisition at varying distances.

Suggested applications include precision mid- to long-range target shooting and lightweight field hunting where a compact AR-pattern rifle is preferred.

Product Specifications

• The caliber is 6mm ARC.
• The magazine capacity is 10 + 1.
• The rifle is configured for Ambidextrous handling.
• The muzzle is fitted with a CMMG Zeroed Muzzle Brake.
• The overall length adjusts between 25.90″ and 36.60″.
• The primary construction material is Aluminum.
• The safety is a CMMG Zeroed 60/90 Degree selector.
• The stock is a CMMG Dissent Side Folding design with adjustable length of pull and cheek riser.
• The trigger is a Zeroed Drop-In Single Stage unit.
• The barrel twist rate is 1:7.50″.
• The unloaded weight is approximately 7.70 lbs.
• The listed weight range is 7 lbs to 7.99 lbs.
• The barrel is described as Steel Threaded.
• The barrel length is 16.10″.
• The barrel length range is 16″ to 16.99″.
• The UPC is 810144721583.

The DISSENT MK4 delivers a practical long-range AR-platform option with thoughtful controls, a folding stock for compact transport, and an adjustable gas system for suppressed or unsuppressed use. Its CMMG Zeroed components provide a familiar manual of arms while the M-LOK handguard and top Picatinny rail allow accessory flexibility for optics and support gear. If you want a versatile AR-pattern carbine that balances reach and maneuverability, this configuration provides the core features you’d expect from a dedicated manufacturer build.

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