The CMMG Dissent Mk4 pistol in 6mm ARC with an armor black finish and 16.1-inch barrel (brand part no. 60AE90CAB) delivers phenomenal ballistics from an AR-pattern platform that rivals the performance of larger-caliber rifles. CMMG builds the Dissent around a direct impingement operating system with a 1:7.5 barrel twist and a 416 stainless steel barrel, and the DISSENT upper receiver and Mk4 forged lower are both 7075-T6 aluminum. A CMMG Zeroed muzzle brake, drop-in Zeroed trigger, and Zeroed 60/90-degree safety selector round out the build, and a reversible side charging handle supports fast manipulation. The pistol includes two 10-round CMMG magazines and a 1913 Picatinny rail end plate for sling mounts or a folding stock accessory. Among 6mm ARC semi-auto handguns, this Dissent Mk4 configuration favors shooters who want long-range performance in a lighter, AR-pattern pistol.

Key Specifications

• The chambering is 6mm ARC, offering ballistics that rival larger rifle cartridges.
• The barrel measures 16.1 inches, with a 1:7.5 twist and 416 stainless steel construction.
• The operating system is direct impingement, the proven AR15 manual of arms.
• The upper and lower receivers are 7075-T6 aluminum, forged for the lower.
• The muzzle device is a CMMG Zeroed muzzle brake, threaded 5/8×24.
• The trigger is a Zeroed drop-in unit, and two 10-round magazines are included.
• The unloaded weight is 6.4 pounds, with an overall length of 26.3 inches.

Frequently Asked Questions

Why choose 6mm ARC over .223/5.56? It delivers long-range ballistics closer to .243 Win or .308 Win while staying on the lighter AR15 platform.

How many magazines are included? Two 10-round CMMG magazines ship with the pistol.

Buy the CMMG Dissent Mk4, 6mm ARC

Long-range 6mm ARC ballistics in a lighter AR-pattern pistol are exactly what this Dissent Mk4 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.