CMMG Dissent BR4 Features The CMMG Dissent BR4 is built around a mid-length gas system with an adjustable 0.750 inch gas block letting shooters tune the action for different ammunition and suppressor use. Its CMMG ZEROED muzzle brake threaded to 1/2x28 helps tame recoil and muzzle rise for faster follow-up shots while the drop-in single-stage ZEROED trigger delivers a crisp consistent break shot after shot. The side-charging billet upper receiver keeps the shooter s support hand in a natural position and clears the optic s field of view during manipulation a feature that sets the Dissent line apart from standard AR uppers. A 15 inch M-LOK handguard with an integrated Picatinny rail gives shooters ample real estate for lights optics and other accessories. The receiver set is machined from 7075-T6 aluminum and finished in Midnight Bronze Cerakote over a black nitride barrel a durable combination that resists wear and corrosion through heavy use. A reversible cross bolt safety and ambidextrous-friendly controls make the Dissent BR4 comfortable to run for both right and left handed shooters. The rifle ships with two Magpul 10 round PMAGs and a Magpul SGA fixed stock for a stable repeatable cheek weld. At 8 pounds and 38.1 inches overall the Dissent BR4 balances well for both range use and field carry making it a versatile choice for shooters who want a CMMG-built AR platform with standout ergonomics and finish. CMMG Dissent BR4 Specifications Brand: CMMG Series: BR4 Model: Dissent Caliber: 5.56x45mm Action: Semi-Automatic Operating System: Direct Impingement Capacity: 10+1 Barrel Length: 16.10 Barrel Twist: 1:7 Barrel Material: Chrome Moly Steel Barrel Finish: Black Nitride Barrel Description: Threaded Muzzle Thread: 1/2x28 Handguard: M-LOK Receiver Material: Aluminum Receiver Finish: Midnight Bronze Cerakote Stock: Magpul SGA Fixed Trigger: CMMG ZEROED Single Stage Safety: Reversible Crossbolt Overall Length: 38.1 Weight: 8 lbs Available At: GrabAGun