The CMMG Dissent Br3 .308 Win rifle in Armor Black (CMMG part no. 38A530CAB) balances traditional bolt-gun ergonomics with the versatility of a 30-caliber carbine. CMMG designed the Br3 for owners in heavily restricted states, pairing a Magpul SGA stock that accepts Remington 870-pattern stocks with a full-length top Picatinny rail and an M-LOK handguard. The compact-action, direct-impingement system includes an adjustable gas block and a forward, reversible side charger, so it can be tuned to your ammunition or to suppressed use. It is a capable choice for deer-sized game, range work and general-purpose .308 shooting.

Key Specifications

• The chambering is .308 Win, a 30-caliber cartridge with a long record on game and at the range.
• The barrel is 16.1 inches with a 4140CM nitride-finished profile, a carbine length with a hard surface.
• Rifling is a 1:10 twist, which suits common .308 bullet weights.
• The muzzle carries a ZEROED SVB brake on a 5/8×24 thread, so recoil is reduced and other 5/8×24 devices can be fitted.
• The gas system uses an adjustable 0.750-inch gas block, letting you tune the rifle for different ammunition or suppressed shooting.
• The stock is a Magpul SGA in the Remington 870 pattern, so other 870-compatible stocks fit.
• The safety is a reversible cross-bolt, which puts the control where a traditional rifle shooter expects it.
• The charging handle is a reversible Dissent side charger that does not reciprocate, so it stays clear of your hand while firing.
• The trigger is a ZEROED single-stage unit specific to the Br3 platform.
• Two Magpul 10-round PMAG magazines are included, which keeps the rifle at a 10-round capacity.

Frequently Asked Questions

Is it a bolt-action rifle? No. The Br3 is a semi-automatic, direct-impingement rifle that borrows the look and controls of a traditional rifle, including a Remington 870-pattern stock and a cross-bolt safety.

Do other Mk3 uppers fit? CMMG states that the Br3 can accept all Mk3-compatible Dissent upper groups.

Does it come with extra magazines? It includes two Magpul 10-round PMAG magazines, according to CMMG’s specifications for this model.

Buy the CMMG Dissent Br3 Rifle, .308 Win, 16.1-Inch, Armor Black, Muzzle Brake, 10-Round

Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more AR rifles from CMMG and others. The Br3 is aimed at shooters who want a modern .308 with traditional controls.