Product Description The Radian Weapons Model 1 Complete Upper is a premium AR-15 compatible upper assembly engineered to blend precision machining, durability, and performance. Built around a billet-machined 7075-T6 upper receiver with M4 feed ramps, it features a match-grade 416R stainless steel 16-inch barrel with polished crown and feed ramps for consistent reliability and accuracy. A proprietary extended aluminum handguard with Magpul M-LOK modular mounting and an integrated stainless steel anti-rotation pin provides a rigid, secure platform for accessories. Finished in Flat Dark Earth (FDE), this complete upper includes an enhanced black nitride M16 bolt carrier group and is chambered in .223 Wylde/5.56 NATO with a 1/2x28 threaded muzzle. Product Highlights Sub-MOA accuracy guarantee with Black Hills Match Grade ammunition Billet-machined 7075-T6 aluminum upper receiver with M4 feed ramps 16-inch match-grade 416R stainless barrel with polished crown and feed ramps Extended FDE handguard with Magpul M-LOK modular accessory mounting Enhanced black nitride M16 bolt carrier group and lightweight forward assist Specs Brand: Radian Weapons Model: Model 1 Type: Complete Upper Platform/Fit: AR-15 / AR-Style Caliber: .223 Wylde (also supports 5.56 NATO) Barrel Length: 16 in Barrel Material: 416R stainless steel (match grade) Barrel Twist Rate: 1:8 Muzzle Threads: 1/2x28 Receiver Material: 7075-T6 aluminum Handguard: Extended aluminum handguard with Magpul M-LOK mounting system Receiver/Handguard Finish: Flat Dark Earth (FDE) Cerakote Barrel Finish: Black UPC: 817093024567 Manufacturer Part Number: R0473 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.