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 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.
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