Radian Weapons Model 1 Builder Kit Features This kit features the Radian AX556 Lower Receiver renowned for its fully ambidextrous controls including bolt catch and magazine release. Paired with a Raptor-SD Charging Handle and Talon 45/90 Ambidextrous Safety Selector this setup delivers seamless operation for both right- and left-handed users. The Magpul M-LOK handguard provides ample space for accessories while the lightweight forward assist and dust cover enhance functionality. Built from premium materials with precision machining this kit ensures long-lasting performance and reliability. Radian Weapons Model 1 Builder Kit Specifications Caliber: 5.56 NATO / .223 Remington Finish: Flat Dark Earth Cerakote Upper Receiver: Billet with Dust Cover & Forward Assist Lower Receiver: Radian AX556 Ambidextrous Handguard: 8.5 Magpul M-LOK Charging Handle: Raptor-SD Ambidextrous Safety Selector: Talon 45/90 Ambidextrous Bolt Catch & Magazine Release: Ambidextrous Barrel Nut: 7075-T6 Aluminum Additional Components: Enhanced Takedown Pin Set Barrel Nut Wrench Handguard Cross Bolts Washers & Nuts