Product Description The Radian Weapons Model 1 Builder Kit is a premium set of core components designed for a high-end AR-15 style build, combining a billet upper receiver assembly with a 10-inch handguard featuring the Magpul M-LOK modular attachment interface. This kit also includes Radian&';s renowned ambidextrous controls-such as the Raptor-SD charging handle and Talon 45/90 safety selector-along with essential hardware like the barrel nut, wrench, and handguard fasteners to support a clean, secure assembly. Product Highlights Billet upper receiver includes dust cover, anti-rotation pin, and lightweight forward assist installed. 10-inch handguard with Magpul M-LOK modular attachment interface for accessories and customization. Includes premium Radian ambidextrous controls: Raptor-SD charging handle and Talon 45/90 safety selector. Enhanced ambidextrous lower controls included: bolt catch/release and magazine release. Build-ready hardware kit includes aluminum barrel nut, barrel nut wrench, and handguard cross-bolt fasteners. Specs Brand: RADIAN WEAPONS Manufacturer Part Number: R0430 UPC: 817093024130 Handguard Length: 10 in Handguard Interface: Magpul M-LOK Included Components: Billet upper receiver (with dust cover, anti-rotation pin, lightweight forward assist installed); handguard; AX556 lower receiver; Raptor-SD ambidextrous charging handle; Talon 45/90 ambidextrous safety selector; ambidextrous bolt catch & release; ambidextrous magazine release; enhanced takedown pin set; aluminum barrel nut; barrel nut wrench; (4) handguard cross bolts with washers & nuts Item Weight: 5.36 lb Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.