Daniel Defense

The MK12 AR15 style firearm is the evolution of the special purpose rifle. It's constructed around an 18-inch Stainless Steel barrel with a chamber created during the Cold Hammer Forging process which ensures the most precise alignment of the chamber to the bore possible. This along with being DLC finished equates to unprecedented accuracy and durability. The MK12 barrel is engineered with a rifle-length direct impingement gas system and utilizes the MK12 gas block which is built to Crane (Naval Surface Warfare Division) Specifications for USSOCOM. The upper receiver is equipped with a 12 inch free floating picatinny quad rail for your choice of optics and accessories independently ambi GRIP-N-RIP Charging Handle that accommodates left- and right-handed shooters and is finished off with a Daniel Defense Improved Flash Suppressor. This precision rifle is equipped with the Geissele SSA 2-Stage Trigger to give the marksman an advantage for precise fire to the target. - MATERIALS & CONSTRUCTION - 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: Proprietary Blend of Stainless Steel Cold Hammer Forged 1:7 Twist 18 MK12 Profile DLC Finished and HP/MPI Tested - GAS SYSTEM: MK12 Low Profile Gas Block CNC Machined of hardened 416 Stainless Steel with Black Oxide Coating Rifle-Length Direct Impingement - MUZZLE DEVICE: Daniel Defense Flash Suppressor 17-4 PH Stainless Steel Salt Bath Nitride Finished - BOLT CARRIER GROUP: M16 Profile Mil-Spec MP Tested Chrome Lined Properly Staked Gas Key - BUFFER: H Buffer - SIGHTS: Sold Separately - HANDGUARD: Daniel Defense DDM4 Rail 12.0 CNC Machined of 6061-T6 Aluminum Type III Hard Coat Anodized - CHARGING HANDLE: GRIP-N-RIP Charging Handle Body CNC Machined of 7075-T6 Aluminum Handles & Latch CNC Machined of 6061-T6 Aluminum Heavy Duty Stainless Steel Roll Pins Type III Hard Coat Anodized - RECEIVER EXTENSION: 6 Position Mil-Spec 7075-T6 Aluminum - BUTTSTOCK: Daniel Defense Buttstock Glass Filled Polymer with Soft Touch Overmolding - 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 F. - Made in the USA! - Specifications - Mounting System: Picatinny - Caliber: 5.56mm NATO - Muzzle Thread: 1/2X28 TPI (Threads Per Inch) - Gas System: Rifle - Barrel Length: 18 - Barrel Profile: MK12 - Product Weight: 7.41 lbs - Length: 34 3/4-37 7/8 - Magazine: DD Magazine