CMMG Dissent BR4 | 6.5 Grendel | 16.1 in | 64A190CAB

The CMMG Dissent BR4 in 6.5 Grendel is built for medium- to long-range field use and precision-oriented target work, combining a modern sporting rifle platform with features tailored to consistency and ergonomics. It ships with two 10-round magazines and a threaded 16.1-inch nitride barrel that accepts 5/8-24 muzzle devices. For optics, a variable-power riflescope such as a Vortex Viper PST in a mid-to-high magnification configuration (commonly available under $1,000) pairs well with the cartridge and barrel length for extended-range accuracy. Typical applications include precision target shooting and hunting medium game with efficient 6.5mm projectiles.

Product Specifications

• The UPC is 840442500429.
• The caliber is 6.5 Grendel.
• The action is Semi-Auto.
• The barrel length is 16.1 inches.
• The rate of twist is 1:7.
• The barrel material is 4140CM SBN.
• The muzzle thread specification is 5/8-24.
• The muzzle device is a ZEROED muzzle brake.
• The gas system is a .750 inch car-length gas system with an adjustable gas block.
• The upper receiver is DISSENT 7075 T6 aluminum.
• The lower receiver is a BR4 billet 7075 T6 aluminum lower.
• The handguard is a CMMG EML15 M-LOK handguard.
• The stock is a Magpul SGA black synthetic stock.
• The magazine capacity is 10 rounds and two 10-round magazines are included.
• The overall weight is approximately 8 pounds and the overall length is 38.1 inches.

The Dissent BR4 combines sturdy construction, ambidextrous controls and a purpose-built parts set for shooters who prioritize repeatable performance. Its 16.1-inch nitride barrel with a 1:7 twist complements the 6.5 Grendel cartridge for stable bullet flight out to extended ranges, while the Magpul SGA stock and reversible side charger support practical handling in the field or on the range. Delivered with two 10-round magazines and a Zeroed drop-in trigger, this rifle is ready for precision-minded shooters who want a refined MSR platform without unnecessary extras.