Product Description The Radian Weapons Model 1 Complete Upper is a premium, factory-built AR-15 upper receiver assembly engineered for accuracy, durability, and smooth operation. It is constructed from billet-machined 7075-T6 aluminum and features a proprietary extended aluminum handguard with a Magpul M-LOK mounting system plus an integrated stainless steel anti-rotation pin between the upper and handguard. The match-grade 416R stainless steel barrel features polished feed ramps and a polished crown, and it is threaded to accept compatible muzzle devices. This complete upper is equipped with an enhanced black nitride M16 bolt carrier group, a lightweight forward assist, and a Radian Raptor-SD suppressor-optimized ambidextrous charging handle, operating via a direct impingement gas system. Product Highlights Billet-machined 7075-T6 aluminum upper receiver with proprietary extended M-LOK handguard and anti-rotation pin Match-grade 14.5-inch 416R stainless steel barrel with polished crown and feed ramps for consistent performance Includes enhanced black nitride M16 bolt carrier group and Radian Raptor-SD ambidextrous charging handle Direct impingement operating system with mid-length gas system for balanced recoil impulse Flat Dark Earth factory Cerakote finish with threaded muzzle (1/2x28) and KeyMo flash hider (per listing) Specs Brand: Radian Weapons Model: Model 1 Type: Complete Upper Receiver Assembly Platform Fit: AR-15 Caliber: .223 Wylde Barrel Length: 14.5 in Barrel Material: 416R stainless steel (match grade) Twist Rate: 1:8 Thread Pitch: 1/2x28 Operating System: Direct Impingement Gas System Length: Mid-length Handguard / Mounting: Magpul M-LOK (extended/proprietary) Receiver Material: 7075-T6 aluminum (billet) Finish/Color: Flat Dark Earth (Factory Cerakote) Included Components: Enhanced black nitride M16 bolt carrier group; Raptor-SD charging handle; lightweight forward assist Muzzle Device: Dead Air KeyMo flash hider Approx. Weight: 6.4 lb Manufacturer Part Number: R0466 UPC: 817093024499 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.