Product Spotlight: Brownells BRN-4 Upper Receiver Kit
This video features a product spotlight on the Brownells BRN-4 Upper Receiver Kit. The kit is presented as an HK416-compatible, piston-operated upper designed to fit standard mil-spec AR-15 lower receivers. The presenters highlight its HK416 build specifications, compatibility with existing HK416 components, and the elimination of "bolt tilt" common in other piston AR-15 systems. They also discuss the free-floating handguard, the disassembled nature of the kit requiring AR-15 upper assembly skills, and the standard barrel threading for muzzle device compatibility. The BRN-4 is positioned as an option for AR-15 collectors or those seeking a reliable, high-tech piston-operated AR-type rifle with extensive accessory compatibility.










