Karl Prommersberger, a well-known member of the internationally prestigious S&W Club 30, brings his exceptional experience in firearms technology and gunsmithing to his pistols product lines.

In March 1988, after training as a gunsmith, Karl started his own gunsmith`s shop in Aichach (Germany).
At that time, his business focused on the sale of hunting and sporting guns along with the repair and manufacture of hunting rifles, sporting pistols and sporting revolvers.
With the increase in center fire handgun shooting in Germany in the 1990s, Karl intensified his work with center fire sporting guns.
In October 1990, the next step was taken with the opening of a store with an attached workshop in Kühbach (Germany).

In 1995 he attended courses with John Nowling Senior and Les Baer.
From 1998-2015 Karl Prommersberger was the strongest overseas partner of STI (USA).
As a result of the successful business relationship, then company owner Dave Skinner decided to appoint Karl as the owner of the “STI” brand in Europe.
In 2015, the cooperation with STI ended due to new management and the STI brand became Prommersberger`s own registered brand: STP®.
The company now had its own production facility with its own production hall and high-quality CNC machines.

Karl combines the highest quality design with German craftsmanship to present the shooter with pistols dedicated to absolute precision.
Now the STP pistols product line is also available to the US market.