The CMMG Dissent Mk4 is a highly versatile AR-15 pistol, SBR, and rifle platform available in multiple calibers, including 5.56 NATO, 300 BLK, 9mm, and 22 ARC. Designed with precision and adaptability in mind, this model features an M-LOK handguard and Picatinny rail, allowing for extensive customization with accessories. The Dissent Mk4 comes with various capacity options, including 10-, 30-, and 32-round magazines, and offers a choice of barrel lengths (6.5", 10.5", 14.5", and 16.1") to suit different shooting styles and scenarios. This platform is enhanced by a threaded barrel compatible with either the Zeroed muzzle brake or linear compensator, ensuring optimal performance and control. Constructed from durable 7075 T6 aluminum and available in hardcoat anodized black or Cerakote finishes, the Dissent Mk4 emphasizes ruggedness and longevity. It also features CMMG’s Zeroed Trigger & Trigger Guard and a 60/90-degree safety selector, designed for smooth operation and rapid engagement. This model is optics-ready, offering flexibility in sight configurations, and includes a CMMG Dissent side-folding stock or 1913 PIC rail end cap, enhancing portability and compactness. With an overall length ranging from 15.7" to 35.5" and weighing between 4.6 and 6.7 lbs, the Dissent Mk4 is ideal for shooters seeking a powerful, adaptable firearm that performs across a wide range of applications.