The Radian Weapons Model 1 Builder Kit in Radian Black offers a comprehensive set for firearm enthusiasts seeking high-quality components. This kit features a billet upper receiver complete with a dust cover and an anti-rotation pin alongside a lightweight forward assist already installed. The handguard is equipped with a Magpul M-LOK modular attachment interface providing versatility for accessory integration. The Radian AX556 lower receiver enhances the build supported by the precision and convenience of the Raptor SD ambidextrous charging handle. Included is the Radian Talon 45/90 ambidextrous safety selector an ambidextrous bolt catch and release and an ambidextrous magazine release for ease of use. The set also includes an enhanced takedown pin set an aluminum barrel nut a barrel nut wrench and four handguard cross bolts with washers and nuts ensuring all necessary components are at your fingertips for a reliable assembly.