The M9 is a lightweight, semi-automatic pistol manufactured by Beretta and designed to replace the M1911A1 .45 caliber pistol and .38 caliber revolvers. The Beretta M9 has redundant automatic ...

Introduced in 1976, the Beretta Model 84 quickly ... this variant used an uncomplicated blowback-operated firing mechanism and featured all-metal construction, save the pistol stocks.