The Radian Weapons Model 1 Builder Kit is a premium choice for firearm enthusiasts looking to assemble a high-quality rifle. This kit includes a billet upper receiver equipped with a dust cover and lightweight forward assist for optimal performance. The M-LOK handguard with a flat dark earth finish is designed for versatility and durability allowing for easy attachment of accessories. At its core the Radian AX556 lower receiver ensures a reliable foundation for your build. The Raptor SD ambidextrous charging handle and the Radian Talon 45/90 ambidextrous safety selector enhance the user-friendly design making operations smooth and efficient for both left and right-handed users. With the inclusion of an ambidextrous bolt catch release and magazine release this kit offers a seamless experience. The enhanced takedown pin set aluminum barrel nut barrel nut wrench and handguard cross bolts with washers and nuts round out the package providing everything needed for a custom build that prioritizes performance and precision.