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; BARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7″ twist, 14.5″ M4 Profile, Chrome Lined, and Mil-Spec Heavy Phosphate Coated; GAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct Impingement; MUZZLE DEVICE: Pinned and Welded Daniel Defense Flash Suppressor, Extended, 17-4 PH Stainless Steel, Salt Bath Nitride Finished; BOLT CARRIER GROUP: M16 Profile, Chrome Lined, Properly Staked Gas Key; HANDGUARD: Daniel Defense M4A1 Rail Interface System (RIS) II, CNC Machined of 6061-T6 Aluminum; RECEIVER EXTENSION: 6 Position Mil-Spec 7075-T6 Aluminum; BUTTSTOCK/PISTOL GRIP: Daniel Defense Buttstock/Pistol Grip, Glass Filled Polymer with Soft Touch Overmolding; RAIL PANELS: Daniel Defense Rail Panels made from Santoprene, heat resistant to 300deg F