The Radian Weapons model 1 AR-15 builder kit offers an exceptional platform for your next carbine build. Each receiver in this kit is meticulously machined from billet 7075-T6 aluminum, ensuring unparalleled strength and durability as the cornerstone of your firearm. Highlighting this kit is a striking M-LOK handguard that seamlessly matches the receiver, providing ample real estate for bipods and other accessories. The lower receiver is equipped with Radian's high-quality ambidextrous components, enhancing functionality and usability. To complete your AR-15, you'll need to add a bolt carrier group, barrel, gas system and buffer system. With these components, the Radian Weapons model 1 builder kit forms a solid foundation for a versatile and dependable rifle. If you're looking to build a robust AR-15 with uncompromising quality, the Radian Weapons model 1 builder kit is an ideal choice.