Radian Weapons Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiver Fluted Rifle Length 1-7 Twist 5/8x24 Dead Air Keymo Flash Hider Cerakote Flat Dark. Featuring Radians new weight reducing fluted barrel matching fluted buffer tube and updated Magpul furniture for the precision shooter. With flatter trajectories higher ballistic efficiency and extended range this rifle was built for serious shooters - whether you're clearing coyotes at 400 yards ringing steel at 800 or fine-tuning your precision at the range. The design philosophy behind the Radian MODEL 1 is simple: use the highest quality raw materials most precise CNC machining equipment and best components available to create a weapon that seamlessly blends form and function. Beyond quality and aesthetics the MODEL 1 features fully ambidextrous controls adding much-needed utility for both left and right handed shooters. Every MODEL 1 is assembled by hand one at a time by a trained technician who inspects test fires and cleans the weapon to personally guarantee it meets the most rigid quality standards. No detail has gone overlooked which is why the MODEL 1 like every Radian product is guaranteed for life. Specifications for Radian Weapons Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiver: Manufacturer: Radian Weapons Caliber: 6mm ARC Barrel Length: 18 in Barrel Profile: Fluted Gas System Length: Rifle Length Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 5/8x24 Muzzle Device: Dead Air Keymo Flash Hider Gun Model: AR-15 Fabric/Material: 7075-T6 Aluminum Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Barrel Material: 416R Stainless Steel Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Features of Radian Weapons Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiver Sub-MOA Accuracy Guarantee w/Black Hills Match Grade Ammunition Billet Machined 7075-T6 Upper Receiver w/M4 Feed Ramps Proprietary Extended Aluminum Hand Guard w/Magpul M-LOK Modular Mounting System and Integrated Upper/Hand Guard Stainless Steel Anti-Rotation Pin Grade 416R Stainless Steel Barrel w/Weight Reducing Flutes Chambered in 6mm ARC. Enhanced Black Nitride M16 Bolt Carrier Group Lightweight Forward Assist Raptor-SD Suppressor-Optimized Ambidextrous Charging Handle Package Contents: Radian Weapons Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiver What firearm models does the manufacturer say Radian Weapons Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiver is compatible with? The manufacturer suggests that Radian Weapons Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiver is compatible with AR-15Radian Weapons R0902: Model 1 AR-15 6mm ARC 18 inch M-LOK Upper Receiver Fluted Rifle Length 1-7 Twist 5/8x24 Dead Air Keymo Flash Hider Cerakote Flat Dark Earth