The 5.56×45mm NATO (official NATO nomenclature 5.56 NATO, commonly pronounced "five-five-six") is a rimless bottlenecked centerfire intermediate cartridge...

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...

high-velocity military service cartridges. Cartridges like the 5.45×39mm, 5.56×45mm NATO and Chinese 5.8×42mm allow a soldier to carry more ammunition for the...

cartridge and designated 5.56×45mm NATO (SS109 or M855). The external dimensional specifications of .223 Remington and 5.56×45mm NATO brass cases are nearly...

– 5.56×45mm NATO) Daewoo XB (South Korea – assault rifle – 5.56×45mm NATO: prototype) Daewoo K3 (South Korea – light machine gun – 5.56×45mm NATO) Daewoo...

caliber include the very widely used .22 Long Rifle and .223 Remington/5.56×45mm NATO. .22 inch is also a popular air gun pellet caliber, second only to the...

5.56mm duplex) M14E1 (Selective Fire Rifle, 7.62×51mm NATO) (never standardized) M16A1 (5.56×45mm NATO) M16 (5.56×45mm NATO) XM16E1 (5.56×45mm NATO)...

or NATO magazine is a type of detachable firearm magazine proposed by NATO in October 1980. Shortly after NATO's acceptance of the 5.56×45mm NATO rifle...

5.56×45mm NATO assault rifle introduced in 1981 and produced in limited quantities by Heckler & Koch. It was designed to replace the 7.62×51mm NATO chambered...

family of Israeli-made automatic rifles chambered for the 5.56×45mm NATO and 7.62×51mm NATO cartridges. Originally designed by Yisrael Galili and Yakov...