CMMG Dissent MK4 60AA90CAB | 6mm ARC | 16.1in Barrel

The CMMG DISSENT MK4 in 6mm ARC combines AR-15 ergonomics with a cartridge designed for flat trajectories and extended effective range. This DISSENT MK4 example ships with ZEROED components, a side folding stock and an adjustable gas block to tune suppressed or unsuppressed performance. For a glass option under $1,000 that pairs well with this platform consider the Vortex Viper PST Gen II 5-25×50 for long-range precision and target work. Common applications include precision long-range target shooting and varmint or medium-game field use.

Product Specifications

• The model is listed as CMMG Dissent MK4 (60AA90CAB).
• The caliber is 6mm ARC.
• The operating system is Compact Action-Direct Impingement.
• The barrel measures 16.1 inches.
• The barrel twist rate is 1:7.5.
• The barrel material is specified as 416SS SBN.
• The muzzle device is a CMMG ZEROED Muzzle Brake.
• The muzzle thread is 5/8 x 24.
• The gas block is listed as Adjustable 0.750.
• The handguard is a CMMG 15 Proprietary M-LOK style.
• The upper receiver is DISSENT 7075 T6 Aluminum.
• The lower receiver is Mk4 Forged 7075 T6 Aluminum.
• The stock is described as a DISSENT Side Folding Stock with adjustable cheek riser.
• The magazine capacity is listed as 10 + 1 and the listing notes two 10-round magazines included.
• The UPC is 810144721552.

This DISSENT MK4 presents a purpose-driven AR platform built around the 6mm ARC cartridge and equipped with parts intended for tunability and accessory mounting. The side charging handle and folding stock favor transportability and rapid manipulation, while the adjustable gas block allows users to optimize cycling with different loads or when using a suppressor. If you value a compact, flat-shooting carbine that accepts standard AR ergonomics and ZEROED upgrades, this CMMG DISSENT MK4 is configured to deliver that capability.

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