as the Winchester Automatic Rifle (WAR) intended to replace the M1918 Browning Automatic Rifle (BAR), and a .50 caliber anti-tank rifle version. As the design of several of these firearms neared completion, the war's end in August 1945 and subsequent budget cutbacks ended these projects. Williams assisted Winchester throughout the war on a number of smaller projects, including the design and development of the rear flip sight for the M1 carbines. Winchester Repeating Arms – Post World War II Along with his .30 M2 Browning Military Rifle, Jonathan Edmund Browning had developed, patented, and sold to Winchester a design for a semi-automatic shotgun , , . After the war, Winchester assigned Williams to the project of developing the shotgun for sporting use. As an assignee of Olin Industries (Winchester) Williams obtained two patents related to his design: “Inertia Operated Bolt Lock” published July 12, 1949, and “Firearm with Movable Chamber and Sealing Sleeve” published August 19, 1958. Winchester introduced the shotgun in 1954 as its Model 50 Automatic Shotgun in 12 and 20 gauge. The shotgun featured an Inertia Operated Bolt Lock designed by Williams. The bolt block and cartridge sat within a large floating chamber. When the gun was fired, the gas forward of the floating chamber forced the chamber to the rear approximately 1/10th of an inch in a short stroke that generated the energy necessary for the bolt block to disengage the rear of the floating chamber and operate the semi-automatic action. This was the first semi-automatic shotgun with a fixed nonrecoiling barrel. In 1960 Winchester introduced its Model 59 Automatic Shotgun, which also utilized the Williams design from the Model 50. This model featured the Winlite 'glass' barrel; it was a thin tube wrapped with microfilament glass fibre. This model could be had with the first ever screw-in Versalite choke tubes. Movie fame In 1952, MGM released the film Carbine Williams starring James Stewart as Williams with Jean Hagen as his wife, Maggie. The movie details Williams's life from his discharge from the Navy to his release from prison. The movie premiered April 24, 1952, at the Colony Theater in Fayetteville, North Carolina. After the premier, Williams traveled the country, appearing where the film was shown and offering autographs and photographs. The story presented in the movie Carbine Williams was entertainment based on the story as told to MGM's producers by David Marshall Williams, verbally, in