SERVICE – Very limited use by the Italian military at the end of WWII. Licensed production (as the BA-52_ in Burma during the early 1950s
This weapon was designed by Toni and Zorzoli Giandoso in 1944. It was put into very limited production in 1945 with only about 6,000 weapons being produced before the end of the war. Due to the rough finish and some functioning difficulties, the weapon was not well received and declared “obsolescent) by the US and British military forces who examined the weapon after the war. Burma bought the rights to produce the weapon as it could be constructed with simple machinery.
One aspect of the TZ-45 design made it stand out. At the rear of the front magazine well is a grip safety lever. If this lever is not held by the shooters non-firing hand, the bolt cannot move from either the closed or open position. This simple mechanism was not found on any previous submachinegun design, though it would have prevented a number of accidental discharges.