The Brugger And Thomet (B+T) MP 9 is a compact sub-machine gun chambered in 9 mm. It is part of the SMG family that lies between the machine pistols (pistols converted for full auto, like the Glock 18) and the full size sub-machineguns like the standard HK MP5 line. B+T purchased the rights and patents to the Steyr TMP, an excellent compact submachine gun that was noted for its ergonomics and control in full automatic. B+T made several changes to the TMP including the addition of a folding stock, a Picatinny accessory rail along the top, and a redesign of the fore grip to allow for the mounting of accessories. The B+T MP 9 should not be confused with the Ruger submachine gun of the same name. The Ruger is an improved Uzi and shares little with the B+T MP 9 beyond caliber. The B+T MP 9 accepts fifteen or thirty round magazines.
