As a light-weight anti-aircraft (AA) gun in some ships; up to 6 M2 guns can be mounted on exactly the same turret. The BAR is made with aluminum alloy or metal receivers, according to the design, plus a fluted stock with total pistol grip. Browning has been during the rifle https://telebookmarks.com/story6850670/the-definitive-guide-to-browning-firearms