Taurus SMT
The Taurus SMT is a family of submachine guns manufactured by Taurus Firearms. It was introduced in early 2011, under the designation MT G2. Taurus also offers a semi-automatic only variant of the MT G2, known as the CT G2, which is intended for the civilian and security markets. Variants 
Taurus offers the SMT in two different variants; the SMT9 and SMT40, the only difference between the two is their calibre. The Taurus CT G2 is a semi-automatic only pistol-caliber carbine variant of the MT G2. It was first announced at the 2011 SHOT Show. The CTT40 is a further evolution of the CT G2 series. Operators
 
Brazilian Army
Law enforcement in Brazil
 
: Taurus SMT9C used by Ground Specialized Unit (41 Squadron). Bangladesh Police: Taurus SMT9C used by Crisis Response Team (CRT). Police of Republika Srpska

References 

.40 S&W submachine guns
.45 ACP submachine guns
9mm Parabellum submachine guns
Submachine guns of Brazil