5.56x45 mm M16 NATO

The M16 rifle, officially designated Rifle, Caliber 5.56 mm, M16, is a family of military rifles adapted from the ArmaLite AR-15 rifle for the United States military. The original M16 rifle was a 5.56mm automatic rifle with a 20-round magazine.

Many manufacturers

Type

Assault Rifle

Role

Different Countries

Country of Origin

1964

Introduction

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Note

In 1964, the M16 entered US military service and the following year was deployed for jungle warfare operations during the Vietnam War. In 1969, the M16A1 replaced the M14 rifle to become the US military's standard service rifle. The M16A1 improvements include a bolt-assist, chrome-plated bore and a 30-round magazine. In 1983, the US Marine Corps adopted the M16A2 rifle and the US Army adopted it in 1986. The M16A2 fires the improved 5.56×45mm NATO (M855/SS109) cartridge and has a newer adjustable rear sight, case deflector, heavy barrel, improved handguard, pistol grip and buttstock, as well as a semi-auto and three-round burst fire selector. Adopted in July 1997, the M16A4 is the fourth generation of the M16 series. It is equipped with a removable carrying handle and Picatinny rail for mounting optics and other ancillary devices.

The M16 has also been widely adopted by other armed forces around the world. Total worldwide production of M16s is approximately 8 million, making it the most-produced firearm of its 5.56 mm caliber.

The technical characteristics ​​may have minor differences according to the different manufacturers of the given product. The manufacturers reserve the right to make changes to the specified parameters.

Mass:  6.37 lb (2.89 kg) (unloaded);  7.5 lb (3.40 kg) (loaded)

Length:  39.5 in (1,003 mm)

Barrel length:  20 in (508 mm)

Cartridge:  5.56×45mm NATO (M193)

Caliber:  5.56 mm

Action:  Gas-operated, rotating bolt

Rate of fire:  700–950 rounds/min cyclic sustained;  45–60 rounds/min semi-automatic

Muzzle velocity:  3,150 ft/s (960 m/s) (M855A1 round)

Effective firing range:  550 m (601 yd) (point target) and 800 m (875 yd) (area target)

Maximum firing range:  3,600 m (3,937 yd)

Feed system:  STANAG magazine;  20-round detachable box magazine: 0.211 lb (96 g) empty / 0.738 lb (335 g) full  or  30-round detachable box magazine: 0.257 lb (117 g) empty / 1.06 lb (480 g) full)

Beta C-Mag 100-round double-lobed drum:  2.20 lb (1,000 g) empty / 4.81 lb (2,180 g) full)

Sights:  Iron sights or various optics

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