.45 ACP or 9x19mm
Designed in 1964 by Gordon Ingram it was known as the Military Armament Corporation Model 10 (MAC-10) and was significant for its effective two-stage suppressor (not shown). It has a high rate of fire and will empty a 30-round magazine of .45 ACP or 32-round magazine of 9mm in just over one second.
It is considered extremely inaccurate and has only been used by a handful of militaries around the world in small numbers,
including US Navy SEALs in Vietnam and Israeli Mossad.
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