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 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...

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"...

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...

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...

service cartridge until superseded by the 5.56×45mm NATO and 7.62×51mm NATO cartridges in the 1970s and 1980s.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...

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...

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...

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

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...

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...

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....

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...

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...

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...

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...

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...

The Stoner 63 is a 5.56×45mm NATO modular weapon system. Using a variety of modular components, it can be configured as an assault rifle, carbine, top-fed...

The IWI Negev (also known as the Negev NG-5) is a 5.56×45mm NATO light machine gun developed by Israel Weapon Industries (IWI), formerly Israel Military...