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...

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...

The later adoption of the 5.56×45mm NATO intermediate cartridge and assault rifles as standard infantry weapon systems by NATO militaries started a trend...

– 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...

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...

5.56mm 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)...

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...

the People's Liberation Army claims that it is superior to the 5.56×45mm NATO and Soviet 5.45×39mm cartridges. Another variant called the DBP88 "heavy round"...

the 5.56 NATO cartridge in short barreled rifles (SBR) and carbines. Based on the .30 Remington cartridge, it is midway between the 5.56×45mm NATO and...

would replace all 5.56×45mm NATO weapons as well as most 7.62×51mm NATO rifles and machine guns in the U.S. military. Eventually, the 5.56mm was retained...

Industries (IWI). It is produced in three different calibres: 5.56×45mm NATO, 7.62×39mm and 7.62×51mm NATO. IWI US also produced semi-automatic only variants of...

the XM250. The M249 SAW is a belt-fed light machine gun. It fires the 5.56×45mm NATO cartridge, usually a combination of one M856 tracer and four M855 ball...

service cartridge until superseded by the 5.56×45mm NATO and 7.62×51mm NATO cartridges in the 1970s and 1980s. The 7.5×54mm French MAS has an uncommon 12.39 mm...

and has been adapted for use in numerous firearms firing the 5.56×45mm NATO, 7.62×51mm NATO, and 9×19mm Parabellum cartridges. C-Mag is short for century...

The FN FNC (French: Fabrique Nationale Carabine) is a 5.56×45mm NATO assault rifle developed by the Belgian arms manufacturer FN Herstal and introduced...

5.56 is an air-cooled, dual-feed light machine gun/rifle for semi or full-auto configurations that fires the 5.56×45mm NATO cartridge. The Shrike 5.56...

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...

SIG516 is a sporting rifle manufactured by SIG Sauer, chambered in 5.56×45mm NATO. The SIG Sauer SIG516 shares lineage with the Heckler & Koch HK416....

export variant of the rifle was also produced, modified to use the 5.56×45mm NATO cartridge with the SS109 bullet, fed from plastic 30-round curved magazines...

Micromagnum) is a proprietary bottlenecked rimless cartridge derived from a 5.56×45mm NATO (.223 Remington) parent case. It was developed by custom gunsmith Fred...

1974 in Belgium. CAL: Carabine Automatique Légère, 5.56×45mm NATO assault rifle. F2000: 5.56×45mm NATO bullpup assault rifle, part of a system with a computerized...

that the Grendel is a good "middle ground" between the 5.56×45mm NATO and the 7.62×51mm NATO. It retains greater terminal energy at extended ranges than...

223 Wylde chamber is a wildcat rifle chamber designed to accurize the 5.56×45mm NATO chamber for NRA High Power competition. In 1957, during research into...

chambered for the 5.56×45mm NATO intermediate cartridge and the heavy battle rifle/designated marksman rifle variants for the 7.62×51mm NATO, 6.5 mm Creedmoor...

modular design enables users to change the calibre of the weapon to 5.56×45mm NATO or 7.62×39mm intermediate cartridges by quick change of barrel with...

the 7.62×51mm NATO rifle cartridge, it is intended for use where the penetrative power, stopping power, and range of the 5.56×45mm NATO HK416 would otherwise...

machine gun designed by FN Herstal in 2021, chambered for 5.56×45mm NATO and 7.62×51mm NATO. The EVOLYS was designed to be lighter and more ergonomic...