LOWER RECEIVER: Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized; UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized; RECEIVER EXTENSION: AR Pistol Receiver Extension; BARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7 Twist, 10.3" Govt Profile, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested; GAS SYSTEM: Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct Impingement; MUZZLE DEVICE: Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished; BOLT CARRIER GROUP: M16 Profile, MP Tested, Chrome Lined, Properly Staked Gas Key; HANDGUARD: Daniel Defense RIS II MK18, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized, Black; PISTOL GRIP: Daniel Defense Pistol Grip, Glass Filled Polymer with Soft Touch Overmolding; RAIL PANELS: Daniel Defense Rail Panels made from Santoprene, heat resistant to 300 degrees F