Monday, February 4, 2013

Rifle, 5.56 mm, M16

Rifle, 5.56 mm, M16
M16a1m16a2m4m16a45wi.jpg
From top to bottom: M16A1, M16A2, M4A1, M16A4
TypeAssault rifle
Place of origin United States of America
Service history
In service1963–present
Used bySee Users
WarsVietnam War
Laotian Civil War
Cambodian Civil War
Cambodian–Vietnamese War
Invasion of Grenada
Invasion of Panama
Gulf War
Somali Civil War
Operation Deny Flight
Operation Joint Endeavor
War in Afghanistan
Iraq War
Production history
DesignerEugene Stoner and L. James Sullivan[1]
Designed1956[2]
Manufacturer
  • United States Colt Defense
  • South Korea Daewoo Precision Industries
  • Belgium FN Herstal
  • United States H & R Firearms
  • United States General Motors HydramaticDivision
  • Philippines Elisco
  • United States U.S. Ordnance
Produced1959–present[2]
Number built~8 million[3]
VariantsSee Variants
Specifications (M16A2)
Weight7.18 lb (3.26 kg) (unloaded)
8.79 lb (4.0 kg) (loaded)
Length39.5 in (1,000 mm)
Barrel length20 in (508 mm)

Cartridge5.56×45mm NATO
ActionGas-operated, rotating bolt (direct impingement)
Rate of fire12–15 rounds/min sustained
45–60 rounds/min semi-automatic
700–950 rounds/min cyclic
Muzzle velocity3,110 ft/s (948 m/s)[4]
Effective range550 meters (point target)
800 meters (area target)[5]

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