CMMG DISSENT Mk4 AR-15 6.5" CM 9MM Upper Receiver w/ 5.5" M-LOK Handguard-Armor Black

Compatible with Mk4 and Mil-Spec AR-15 receivers (requires 9mm conversion mags), the CMMG DISSENT Mk4 AR-15 6.5" CM 9mm Upper Receiver w/ 5.5" M-LOK Handguard offers smooth operation and unparalleled accuracy potential with most 9mm loads. Built around a patented compact direct impingement operating system for a super-compact and easy-to-maneuver firearm platform, this upper receiver boasts billet 6061-T6 aluminum construction with a corrosion-resistant Cerakote finish for exceptional strength and lasting wear resistance under punishing conditions. A continuous Picatinny top rail offers ample attachment space for your favorite optics and rail-mounted accessories, while multiple M-LOK slots at the 3, 6, and 9 o'clock positions readily accept a variety of M-LOK-compatible lights, lasers, and other accessories. The left-handed, non-reciprocating side charging handle offers lightning-fast weapon charging. Further, this upper receiver group boasts a 4140 Chrome Moly steel barrel with a 1:10 twist, adjustable gas block, and a corrosion-resistant salt bath nitride finish for exceptional strength and improved accuracy potential. Plus, this barrel comes with a factory-mounted CMMG ZEROED compensator for reduced recoil and enhanced accuracy potential. Backed by CMMG's lifetime quality guarantee. Fully assembled from the factory.