Survival Directory
M16A2 rifle
The M16A2 5.56mm rifle is a lightweight, air-cooled, gas-operated,
magazine-fed, shoulder- or hip-fired weapon designed for either automatic fire
(3-round bursts) or semiautomatic fire (single shot) through the use of a
selector lever. The weapon has a fully adjustable rear sight. The bottom of the
trigger guard opens to provide access to the trigger while wearing winter
mittens. The upper receiver/barrel assembly has a fully adjustable rear sight
and a compensator which helps keep the muzzle down during firing. The steel
bolt group and barrel extension are designed with locking lugs which lock the
bolt group to the barrel extension allowing the rifle to have a lightweight
aluminum receiver.
The M16A2 rifle is an improvement of the M16A1 rifle. The improvements
provided by the M16A2 are:
- The M16A2 features a heavier
and stiffer barrel than the M16A1
- A redesigned handguard,
which is built from two identical halves, and has a round contour which is
sturdier and provides a better grip when holding the rifle
- The buttstock and pistol
grip of the M16A2 are made of a tougher injection moldable plastic that
provides much greater resistance to breakage
- The M16A2 has an improved
rear sight which can be easily adjusted for windage and range
- The upper receiver design of
the M16A2 was modified to deflect ejected cartridges, and preclude the
possibility of the ejected cartridges hitting the face of a left-handed
firer
- The M16A2 is equipped with a
burst control device, that limits the number of rounds fired in the
automatic mode to three per trigger pull, which increases accuracy while
reducing ammunition expenditure
- A muzzle compensator,
designed to reduce position disclosure and improve controllability and
accuracy in both burst and rapid semi-automatic fire
- A heavier barrel with a 1 in
7 twist to fire NATO standard SS 109 type (M855) ammunition which is also
fired from the M249 Squad Automatic Weapon (SAW). This further increases
the effective range and penetration of the rifle cartridge. The M16A2 will
also shoot the older M193 ammunition designed for a 1 in 12 twist
M16A2 Specifications
Primary Function |
Infantry weapon |
Manufacturer |
Colt Manufacturing and Fabrique Nationale Manufacturing
Inc. |
Length |
39.63 inches (100.66 centimeters) |
Weight (with 30
round magazine) |
8.79 pounds (3.99 kilograms) |
Bore Diameter |
5.56mm (.233 inches) |
Maximum
Effective Range |
Area target: 2,624.8 feet (800 meters) |
|
Point target: 1,804.5 feet (550 meters) |
Muzzle Velocity |
2,800 feet (853 meters) per second |
Rate of Fire |
Cyclic: 800 rounds per minute |
|
Sustained: 12-15 rounds per minute |
|
Semiautomatic: 45 rounds per minute |
|
Burst: 90 rounds per minute |
Magazine
Capacity |
30 rounds |
Articles on the M16A2
M16A2 Manuals
071-311-2025: Maintain an M16-Series Rifle
An interactive multimedia presentation.
Colt M16 Rifle Operation and Field Maintenance Handbook
U.S. Department of Justice Drug Enforcement Administration (DEA)