Safety device for automatic firearms

Claim 1

A safety plug device for firearms characterized by a firing chamber, a cylindrical bore, a slide bolt mechanism, and including pistols and rifles wherein the safety plug device consists of: a plug unit comprising a stepped shoulder generally cylindrical plug member having a reduced diameter leading cylindrical bore element and an enlarged diameter trailing cylindrical bore element; wherein, the reduced diameter leading cylindrical bore element is dimensioned to be received in the firing chamber of a pistol in one orientation of said plug unit and the reduced diameter leading cylindrical bore element and the enlarged diameter trailing cylindrical bore element are dimensioned to be received respectively in the firing chamber and the cylindrical bore of a rifle in an opposite orientation to said one orientation of said plug unit; and, a tab unit secured to one end of the enlarged diameter trailing cylindrical bore element of the plug member; wherein, the tab unit comprises an elongated generally flat tab member disposed in a generally perpendicular fashion to the longitudinal axis of the generally cylindrical plug member; and, wherein the tab member comprises: an enlarged generally flat upper flag portion provided with a reduced width neck element and an enlarged width fan element; and, a reduced dimension lower portion; wherein the tab member is dimensioned such that the enlarged upper flag portion will project a substantial distance above the slide bolt mechanism of a pistol and a rifle, when the plug unit is disposed within the firing chamber of those respective firearms.