The M4A1 AR15 style firearm features the RIS II picatinny quad rail, which has been in use by US Special Operations Command (SOCOM) for the SOPMOD Block II program since 2005. The M4A1 is built around a 14.5 inch Cold Hammer Forged M4 Profile barrel with a permanently attached Daniel Defense Flash Suppressor. The independently ambi GRIP-N-RIP Charging Handle accommodates left- and right-handed shooters.

• LOWER RECEIVER: Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point, 7075-T6 Aluminum
• UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps, 7075-T6 Aluminum
• BARREL: Chrome Moly Steel, Cold Hammer Forged, 1:7 Twist, 14.5" M4 Profile, Chrome Lined, Phosphate Coated, and HP/MPI Tested
• GAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 Hardened Steel with Mil-Spec Heavy Phosphate Coating, Carbine Length
• MUZZLE DEVICE: Pinned and Welded Daniel Defense Flash Suppressor, Extended, 17-4 PH Stainless Steel, Nitride Finished
• BOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key
• BUFFER: H Buffer

Daniel Defense M4A1, Semi-automatic Rifle, AR, 223 Remington/556 NATO, 14.5" Hammer Forged Barrel (16" OAL with Pinned Brake), Daniel Defense Flash Hider, Anodized Finish, Black, Carbine Length Gas System, Flat Dark Earth M4A1 Rail Interface System (RIS) II, Daniel Defense Furniture, 32 Rounds, 1 Magazine 02-088-06027-011