when the war ended, colt arms co. were given the browning patents to make the bar that was not given out during the war. this allowed colt to make the bar for sale to civilians. this bar was called the colt automatic machine rifle model 1919. it was first made up of m1918s from the contract with the military which were not delivered. it was one of several colt bars. however, the weapon had a high price. it was also not very useful to civilians. because of this, it did not sell much. ad topperwien was a famous shooter of the early 1920s. he bought one of the first colt bars to shoot things out of the sky. when the national firearms act of 1934 was passed, civilian bars were restricted. machine guns for u.s. civilians were banned in 1968. also, making machine guns for u.s. civilians was banned in 1986.