The AUG's firing mechanism may also be changed at will, into a variety of configurations, including; semi-auto & full-auto, semi-auto & three-round-burst, semi-auto-only, or any other combination that the user may desire [REF].
The AUG's receiver may also be changed from the standard model with a carrying handle and built-in 1.5x optical sight,[REF] to the "T" model receiver which has a universal scope mount to allow for the use of a variety of scopes and sights [REF].