Introducing the purpose-built 6.50 inches DISSENT upper group, now chambered in the versatile 5.7x28mm personal defense cartridge. This complete DISSENT upper group includes a BCG, lower receiver 1913 picatinny rail end plate and offers a choice of seven distinctive cerakote finishes, allowing you to personalize it to your taste. Pair it seamlessly with a MK4/Mil-Spec AR-15 lower receiver or a CMMG MK57 lower receiver for a streamlined setup. In a landscape where pistol stabilizing braces face ongoing scrutiny, AR pistol builders have sought certainty amidst the uncertainty. Enter DISSENT, our innovative solution. Featuring our patent-pending Compact Action and Radial Delayed Blowback technology, DISSENT upper groups house the entire action and recoil assembly within the upper receiver, reducing bulk and length compared to traditional AR pistols. The forward non-reciprocating side charger ensures swift bolt operation without losing sight of your target. Each DISSENT Upper Group is complemented with a 1913 picatinny rail end plate, offering flexibility by replacing the lower receiver buffer tube. Experience the precision and efficiency of DISSENT, crafted to surpass expectations with every build.