CMMG 55A938FAB Dissent 5.56x45mm NATO 30+1 6.50″ , Black Cerakote Rec, OEM Grip, Picatinny Buffer Adapter, Zeroed Drop-In Single Stage Trigger
The CMMG Dissent Mk4 is a compact, buffer-less AR pistol chambered in 5.56x45mm NATO with a 6.50 inch free-floated barrel. It employs CMMG’s patent-pending Compact Action to remove the traditional buffer tube and recoil system, producing one of the most stowable AR-style pistols in its class. The pistol is supplied with an OEM black polymer grip, Picatinny buffer adapter, and a zeroed drop-in single-stage trigger for straightforward installation and use. For an optic that pairs well with this platform, consider the Aimpoint Micro series for a low-profile, durable red-dot solution suited to the Dissent’s compact sight radius.
Common real-world uses for this model include range training where compactness aids transport and handling, and vehicle or pack stowage applications where space is limited.
Product Specifications
The manufacturer is CMMG.
The model/MPN is 55A938FAB Dissent Mk4.
The caliber is .223 REM/5.56 NATO.
The barrel measures 6.50 inches and is free-floated.
The capacity is 30 + 1 rounds.
The overall length is 14.70 inches.
The action is Semi-Auto.
The weight is 4.60 lbs.
The weight range is listed as 4 lbs to 4.99 lbs.
The finish is Black Cerakote.
The grip material is Black Polymer.
The safety is Ambidextrous.
The sights are Optic Ready.
The design uses CMMG’s Compact Action to eliminate the traditional buffer tube and recoil system for a shorter overall package.
The UPC is 810097507975.
The Dissent Mk4 delivers a purpose-built, compact AR platform engineered for users who need the handling and familiarity of AR controls in a highly stowable package. Its free-floated short barrel and buffer-less Compact Action make it an attractive option for shooters prioritizing portability without sacrificing the modularity and accessory compatibility of the AR family. Durable finishes and a straightforward parts set keep the pistol practical for regular range use and transport-focused roles.
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