An AW incluses
Semi-automatic pistols manufactured after 9/13/1994 with detachable magazines and two or more of the following:
-Magazine that attaches outside the pistol grip
-Threaded barrel to attach barrel extender, flash suppressor, handgrip, or suppressor
-Barrel shroud safety feature that prevents burns to the operator
-Unloaded weight of 50 oz (1.4 kg) or more
-A semi-automatic version of a fully automatic firearm