Colt M16A4 MWS (Modular Weapon System)

The M16A4 is the fourth generation model of the successful M16 series of automatic assault rifles. The M16A4 system, and all the drawbacks contained therein, that debuted in the Vietnam War is now a more refined and consequently more lethal version of the original weapon. The M16 is fielded in all its varying forms with armies all across the globe, similar to a reach as enjoyed by the M16's counterpart, the AK-47 and its variants.

The M16A4 differs from the M16A2 mainly in the removable carrying handle, which can be replaced by a universal MIL-STD 1913 rail then coupled then with an M5 adapter rail system, and the inclusion of a flat top upper receiver. The M16A4 can now be made adaptable to a variety of useful mountings that can include specialized scopes, flashlights and target designators (hence the "Modular Weapon System" designation). Like all in the M16 family, the M16A4 can also mount the M203 40mm grenade launcher under the barrel, increasing lethality and offering the weapon system a dual-role capability with direct and target area methods of fire.

The M16A4 shares performance statistics on par with the preceding M16A2. Muzzle velocity is measured at about 3,110 feet per second. The weapon utilizes the 5.56x45mm NATO round with a 30-round capacity detachable box magazine. Weight increases just one pound with a fully loaded magazine bringing the overall combat weight of the system to a manageable 8.5 lbs. The M16A4 also retains the adjustable front and rear sights, which allow for an effective range of about 600 meters. Firing selections are limited to semi and burst capabilities with a standard safety as well.

There is no internal difference between the M16A2 and the M16A4 models.

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