The Daniel Defense M4A1 features the M4A1 RIS II, which has been in use by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since 2005. The M4A1 features a 14.5” Cold Hammer Forged M4 Profile barrel with a permanently attached Daniel Defense Flash Suppressor. This rifle also comes with the newly designed, rugged and comfortable Daniel Defense Buttstock and Pistol Grip.
This model is the CA Legal model which features a bullet button and a 10 round magazine.
Features :
- 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, MP tested, 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, 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 M4A1 Rail Interface System (RIS) II, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized FDE
- 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 Ladders: 3 low profile FDE ladders made from Santoprene, heat resistant to 300° F.
- Made in the USA
The information below comes from our Gun Caliber Dictionary and is for
general reference only. It does not describe the specifications of this
particular item.
The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles.
—
Craig Boddington
