he invented the repeating shotgun and made shotguns like the winchester model 1887, model 1897, and browning auto-5. he invented pistols like the browning hi-power and the m1911. he invented machine guns like the bar, the m1917, the m1919, and the m2 .50 caliber machine gun. some of browning's gun models are still used by the us military today, including the m1911 and the m2.