- Forged 7075 T6 Lower Receiver Type III hard-coat anodized finish
- Forged 7075 T6 M4 Feed Ramps Flattop Upper Receiver Type III hard-coat anodized finish
- Carbine length gas system
- Fixed front sight tower salt bath nitride finished
- M16 profile bolt carrier group, MP tested, chrome lined and properly staked gas key
- H buffer
- A1.5 Fixed rear sight
- DDM4 12" FSP rail
- 6 position mil-spec receiver extension
- Daniel Defense buttstock
- Daniel Defense pistol grip
- 3 low profile rail ladder panels
- Made in the USA
- Black
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
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
