CMMG DISSENT Mk4 AR-15 6.5" .300 BLK Upper Receiver w/ 5.5" M-LOK Handguard

The CMMG DISSENT Mk4 AR-15 6.5" CM .300 BLK Upper Receiver w/ 5.5" M-LOK Handguard is a high-performance, factory-assembled upper designed to outperform standard AR-15 uppers in accuracy, reliability, and consistency. It features a patent-pending direct impingement compact action that reduces size and weight while enhancing maneuverability. Crafted from billet 6061-T6 aluminum and finished with a corrosion-resistant Cerakote coating, the upper receiver offers exceptional strength and durability. The continuous Picatinny top rail provides plenty of room for mounting optics and accessories, while multiple M-LOK slots at the 3, 6, and 9 o'clock positions allow for easy attachment of M-LOK-compatible lights, lasers, and other accessories. A left-handed, non-reciprocating side charging handle ensures quick and smooth weapon charging. The 4140 Chrome Moly steel barrel features a 1:7 twist rate and a corrosion-resistant salt bath nitride finish for enhanced strength and accuracy. An adjustable gas block lets you fine-tune the gas system to optimize performance with any .300 BLK load. The barrel also comes equipped with a factory-mounted CMMG ZEROED linear compensator to reduce recoil and enhance accuracy. An M1913 picatinny rail end plate is included. Lifetime warranty.