Few firearms have earned the mystique that the Thompson submachine gun has enjoyed for nearly a century. The long association that the "Tommy Gun" has had with gangsters, G-men and G.I.s has made it a movie star, a prized collectible, and an American icon. Thompson believed recoil or gas operated weapons were too heavy and complicated for this role and sought a new method of operation. He formed the Auto-Ordnance Company (AOC), found financial backing, and hired engineers to help develop this weapon. Thompson seized upon the concept of the Blish Lock, developed by John Bell Blish (a career U.S....