SKU: RWR043
UPC: 817093024185
MPN: R0435
The Radian Builder Kit 8.5" is a purpose-built upper receiver assembly designed for shooters who demand precision, reliability, and modularity in a compact rifle platform. Built by Radian Weapons—a manufacturer trusted by law enforcement and military end-users—this kit is ideal for short-barrel rifle (SBR) configurations in tactical and defensive applications. The 8.5-inch barrel length is suitable for close-quarters combat, home defense, and specialized operations while maintaining manageable recoil impulse.
This builder kit leverages Radian's proven design philosophy, focusing on tight tolerances and manufacturing precision that minimize point-of-impact shift and maintain zero retention through extended duty cycles. At 5.13 lbs, the upper assembly is designed for effective handling in confined spaces, making it a versatile choice for tactical scenarios. The design ensures reliability and performance, making it suitable for both initial assembly and long-term service life.
Operators assembling an SBR or those transitioning from carbine to short-barrel platforms will find this kit beneficial for various applications. Its compact design allows for effective handling in confined spaces, making it a versatile choice for tactical scenarios. The Radian Builder Kit 8.5" is an excellent option for those looking to enhance their firearm capabilities.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
