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.

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Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Local Law Compliance

Certain firearm parts and accessories, including AR-style upper receivers, are subject to complex and frequently changing federal, state, and local laws and regulations. While an upper receiver may be lawfully sold and shipped as a component, the legality of possessing, assembling, configuring, or using an upper receiver in certain states (e.g., California, Washington State) and localities depends on how it is assembled, combined with other components, and ultimately used. You are solely responsible for ensuring that any assembly, configuration, possession, or use complies with all federal, state, and local laws, including any so-called “assault weapon” bans and short-barreled rifle restrictions. We do not provide legal advice and are not responsible for unlawful configurations or uses.