Steyr TMP

The Steyr TMP (Taktische Maschinenpistole/Tactical Machine Pistol) is a select-fire 9×19mm Parabellum caliber machine pistol manufactured by Steyr Mannlicher of Austria. The magazines come in 15-, 20-, or 30-round detachable box types. A suppressor can also be fitted.
In 2001, Steyr sold the design to Brügger & Thomet, who developed it into the Brügger & Thomet MP9.
SPP.
The Steyr SPP (Special Purpose Pistol) is a semi-automatic variant of the TMP. The TMP's barrel and barrel jacket lengths were increased slightly so there is a greater length of protruding jacket and barrel. The forward tactical pistol grip was also removed. It is large for a pistol and is constructed mainly from Polyamide 66.