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The table below gives a list of firearms that can fire the 5.56×45mm NATO cartridge, first developed and used in the late 1970s for the M16 rifle, which to date, is the most widely produced weapon in this caliber. [1]
.22 Long Rifle.22 Extra Long.22 Remington Automatic.22 Winchester Automatic.22 ILARCO.22 Winchester Rimfire.22 Winchester Magnum Rimfire.25 Stevens.25 Stevens Short.32 rimfire.38 rimfire.44 Henry.46 rimfire.56-46 Spencer.56-50 Spencer.56-52 Spencer.56-56 Spencer; 2.34mm SwissMiniGun; 4.5×26mm MKR; 5 mm Remington Rimfire Magnum; 10.4×38mm ...
The M16 rifle (officially designated Rifle, Caliber 5.56 mm, M16) is a family of assault rifles adapted from the ArmaLite AR-15 rifle for the United States military. The original M16 rifle was a 5.56×45mm automatic rifle with a 20-round magazine.
During World War II the PL Locks and AC Slide Boxes (a component separate to the gun attached to the bottom and face of the breech block using a rifle-calibre tube insert to initiate firing of the bagged charge) utilising 0.5 inch (12.7 mm) tubes were replaced by PK Locks and Y Slide Boxes using 0.303 inch (7.7 mm) tubes.
The AK-200 series of rifles are based on the AK-100 rifle series and the AK-12. They can be chambered in 5.45×39mm , 5.56×45mm NATO and 7.62×39mm , and use a barrel and gas system assembly and iron sights line similar to that of the AK-74M /AK-100 rifle family.
The original m/1938 rifles (Type I) were converted m/1896 rifles with barrels cut down by 139 mm (5.5 in) and almost always with the original straight bolt handles. These rifles are often referred to by collectors as "m/96-38" rifles, but there was never an official designation for this conversion. [10]
Firing a 5.56×45mm NATO round out of a rifle chambered in .223 Remington could be injurious or fatal to the user as well as the gun, however .223 Remington ammunition can be fired safely from almost any rifle chambered in 5.56×45mm NATO as the NATO specified rifles can handle much higher chamber pressures than the .223 Remington is capable of ...
Rifles designated SG 55x-1 have a 254 mm (1:10 in) twist rate, while models marked SG 55x-2 have a 178 mm (1:7 in) twist rate. The ordinance GP 90 ammunition is optimized for use with the original Swiss 254 mm (1:10 in) rifling twist rate.