The CMMG Dissent pistol in 5.7x28mm with a Black Cerakote receiver (brand part no. 54AA847AB) is one of the shortest, most stowable personal defense weapons CMMG builds, chambered for the small, high-velocity 5.7x28mm round in a buffer-less AR pistol. CMMG free-floats the 6.5-inch barrel inside a 5.5-inch M-LOK handguard, using the company’s patent-pending Compact Action to eliminate the buffer tube entirely. A ZEROED drop-in single-stage trigger sharpens the pull, and the rear Picatinny buffer adapter plate takes the place of a conventional buffer tube. An OEM CMMG grip and ambidextrous safety round out the controls. Among AR pistols chambered for high-velocity rounds, this Dissent configuration favors shooters who want 5.7x28mm’s flat trajectory in a genuinely compact package.

Key Specifications

• Chambered in 5.7x28mm, this pistol runs a 32+1 capacity magazine.
• The barrel measures 6.5 inches and is free-floated.
• The handguard is a 5.5-inch M-LOK unit.
• The operating system is CMMG’s Compact Action, eliminating the buffer tube.
• A Picatinny buffer adapter plate takes the place of a conventional buffer tube.
• The trigger is a CMMG ZEROED drop-in single-stage unit.
• The grip is an OEM CMMG grip.
• The receiver is finished in Black Cerakote.
• The safety is ambidextrous.
• The upper is optic-ready, with no fixed sights installed.

Frequently Asked Questions

Why choose 5.7x28mm? It’s a small, high-velocity, flat-shooting round with light felt recoil.

What makes the Dissent so compact? CMMG’s Compact Action houses the recoil system in the upper receiver, removing the conventional buffer tube.

What handguard does it use? A 5.5-inch M-LOK handguard over the free-floated 6.5-inch barrel.

Buy the CMMG Dissent Pistol, 5.7x28mm

A buffer-less Compact Action and a high-velocity chambering make this Dissent a genuinely distinct AR pistol. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.