CMMG DISSENT Mk4 in 22 ARC is a semi auto rifle with a 16.1 in 4140CM SBN barrel and a Midnight Bronze Cerakote finish. It uses CMMG's Compact Action direct impingement system with a non reciprocating side charger and a folding stock adapter for a more compact overall package. With an adjustable gas block M-LOK handguard and a CMMG ZEROED muzzle brake on 1/2x28 threads it's built for modern optics and accessory setups.Key Features 22 ARC chambering with 16.1 in 4140CM SBN barrel (1:7 twist) Compact Action direct impingement operating system Adjustable 0.750 in gas block 1/2x28 muzzle threads with CMMG ZEROED muzzle brake DISSENT side charging handle (left) and side folding stock 15 in CMMG proprietary M-LOK handguard with top Picatinny rail Includes (2) CMMG 10 round magazinesCMMG builds modern AR pattern firearms around innovative operating systems and durable U.S. made components. The brand is known for pushing compact PDW and PCC designs forward with features like Radial Delayed Blowback ambidextrous controls and modular M-LOK handguards. From high round count training to defensive ready setups CMMG focuses on reliable function and practical performance features.