LOWER RECEIVER: Billet 7075-T6 Aluminum Machined To Mil Spec Dimensions, Front Magazine Well Finger Grips, Nib-X Nickel Boron Coated For Durability UPPER RECEIVER: Mil-Spec 7075-T6 Aluminum Forging With M4 Feed Ramps. Nib-X Coated For Lubricity And Durability BARREL: Match Grade Chrome Moly Vanadium Steel, 1:7 Twist, 18? Special Purpose Profile, Rifle Gas System, Nitromet QPQ Salt Bath Nitrided In the Bore For Extended Life And Accuracy, Nitromet coated or Nib-X Coated On The Outside For Durability And Heat Dissipation BARREL EXTENSION: NiB-X Coated Barrel Extension For Extremely Smooth Locking And Unlocking With The Bolt GAS SYSTEM: Low Profile Gas Block, CNC Machined From 4140 Steel And Nib-X Finished, Nitromet QPQ Carbine Length Gas Tube, Direct Impingement MUZZLE DEVICE: Compensator, 17-4 PH Stainless Steel, Nib-X Coated BOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Nib-X Coated For Reliability And Ease Of Cleaning, Properly Staked Gas Key FIRE CONTROL GROUP: Hammer, Trigger and Disconnect coated in NiB-X for lower pull force (<6 lbs.) and smooth reset BUFFER: Rifle Buffer SIGHTS: Optics Ready HANDGUARD: Free Float Cylindrical, CNC Machined Of 6061-T6 Aluminum, Nib-X Coated, Key Mod Mounting Holes For Configurable Picatinny Rails RAILS: 1- 3” Picatinny Rail BUTTSTOCK: Fixed modular buttstock assembly with adjustable cheek rest PISTOL GRIP: Black Pistol Grip Drago Tactical Bag: Ballistic Fabric Tactical Bag With Exterior Magazine Pockets, Shoulder Backpack Straps, 2 Magazines, Range Ready. Will Shoot under 1 moa with match ammo. Made In Stuart, Florida 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
