The CMMG Dissent .300 BLK pistol is a bufferless AR pistol built around CMMG’s Compact Action (brand part no. 30A0E32-MB). Its 6.5-inch threaded barrel, 5/8×24 muzzle and aluminum receiver finished in Midnight Bronze Cerakote make it one of the most compact .30-caliber AR pistols available. The recoil system lives in the upper, so there is no buffer tube, and the receiver ends in a Picatinny rail plate where an accessory can be mounted. It is built for vehicle carry, suppressed shooting and tight-quarters work from CMMG.

Key Specifications

• The chambering is .300 AAC Blackout, a cartridge that runs well suppressed or unsuppressed from a short barrel.
• The barrel is 6.5 inches with a black nitride finish, keeping the pistol very compact.
• Rifling twist is 1:7, suited to the heavier subsonic bullets .300 BLK is known for.
• The muzzle is threaded 5/8×24 for suppressors and muzzle devices.
• Capacity is 30 rounds plus one in the chamber, giving plenty of firepower for training and defense.
• The operating system is CMMG Compact Action, which houses the recoil system in the upper and removes the buffer tube.
• The receiver is aluminum with a Midnight Bronze Cerakote finish, adding durability and a distinctive look.
• The rear of the lower carries a Picatinny rail end plate for attaching an accessory.
• The handguard is an M-LOK free-float design, providing room for lights, lasers and grips.
• The charging handle is a forward non-reciprocating side charger, so it stays still while the pistol fires.

Frequently Asked Questions

Does the Dissent need a buffer tube? No. CMMG’s Compact Action keeps the whole recoil system inside the upper receiver, so the pistol has no buffer tube.

Can I suppress it? The barrel is threaded 5/8×24, the standard thread pattern for .300 BLK muzzle devices and suppressors.

Is this a pistol? Yes. This Dissent is configured as a pistol with a rear Picatinny rail end plate and no shoulder stock.

Buy the CMMG Dissent .300 BLK Pistol, 6.5-Inch Barrel, Midnight Bronze

A .30-caliber pistol that fits behind a truck seat is a rare thing, and the bufferless design is what makes it possible. The Midnight Bronze Cerakote adds a finish you will not mistake for a standard black rifle. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more semi-auto handguns while you are here.