The Military Armament Corporation Model 10, officially abbreviated as "M10" and "M-10", and more commonly known as the MAC-10, is a compact, blowback operated machine pistol that was developed by Gordon B. Ingram in 1964. It is chambered in either .45 ACP or 9mm. A two-stage suppressor by Sionics was designed for the MAC-10, which not only abated the noise created, but made it easier to control on full automatic (although it also made the gun far less compact and concealable).
The weapon is Many Fraker's weapon of choice. A thug in Darley Gang is seen with this weapon.