CMMG DISSENT BR4 .300 Blackout 14.5″ 10+1 (2) 10rd PMAGs

About this product

The CMMG DISSENT BR4 is a compact carbine chambered in .300 AAC Blackout with a 14.5-inch threaded barrel finished in Armor Black. The barrel is fitted with a pinned and welded CMMG Zeroed SVD brake that extends the barrel’s overall length to 16.1 inches. An adjustable gas block and reversible side charger allow tuning for a variety of ammunition and suppressed or unsuppressed operation. The package includes two Magpul 10-round PMAGs and a Magpul SGA stock for familiar ergonomics and handling.

Key Specifications

• The caliber is .300 AAC Blackout.
• The barrel measures 14.50 inches and is threaded.
• The barrel twist rate is 1:7.
• The muzzle device is a CMMG Zeroed SVD Brake — pinned & welded.
• The muzzle threads are 5/8 x 24.
• The gas block is adjustable (0.750) and set at a carbine port location.
• The upper receiver material is 7075 T6 aluminum.
• The lower receiver is a BR4 billet 7075 T6 aluminum.
• The stock is a Magpul SGA (Black).
• The rifle ships with (2) Magpul 10rd PMAGs (10 + 1 capacity) and has a listed weight of 7.6 lbs.

Robust materials, an adjustable gas system, and the included Magpul magazines make the DISSENT BR4 a practical, adaptable .300 Blackout carbine for range work, suppressed shooting, and general utility use. Its pinned and welded muzzle device and compact profile deliver a balance of maneuverability and standard-length barrel characteristics in a package built around durable 7075 T6 receivers.

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