CMMG Dissent BR4 5.56 NATO

The CMMG Dissent BR4 is an AR-platform rifle built around 5.56 performance while meeting configuration requirements for restricted-state ownership. It pairs a 16.1-inch Empire-profile unthreaded nitride barrel with an adjustable gas block to allow fine tuning for a range of ammunition and shooting conditions. This model ships with two 10-round Magpul PMAGs and a Magpul SGA-compatible stock for a familiar, ergonomic interface.

The rifle is constructed with 7075 T6 aluminum receivers and finished in a Cerakote Armor Black for corrosion resistance and a controlled appearance. A 13.5-inch proprietary M-LOK handguard provides accessory mounting options while the Dissent reversible side charger and ZEROED single-stage Br4-specific trigger deliver a deliberate operating feel.

Key Specifications

• The caliber is 5.56x45mm.
• The barrel length is 16.1 inches, using an EMPIRE profile unthreaded barrel with a recessed crown.
• The barrel twist rate is 1:7.
• The barrel material and finish are 4140CM, Nitride Finish.
• The barrel contour is MT (Medium Taper).
• The gas block is Adjustable 0.750, allowing the gas system to be dialed to preferred ammunition or suppressed use.
• The upper receiver material is DISSENT 7075 T6 Aluminum.
• The lower receiver material is Br4 Billet 7075 T6 Aluminum.
• The handguard is CMMG 13.5 inch Proprietary M-LOK.
• The rifle ships with Magpul 10rd PMAGs (2) included.

With proven materials and a configuration aimed at compliance and functionality, the CMMG Dissent BR4 brings practical features to the range or defensive storage. Buy the CMMG Dissent BR4 5.56 NATO rifle for sale online today for a reliable AR-platform option with state-compliant barrel configuration.

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