The Taurus PT92 is a semi-automatic pistol developed by Forjas Taurus.
An airmen was seen carrying the PT92 against the invading Goa'uld sent by Apophis. The pistol was later seen in the hands of Daniel Jackson, Samantha Carter and Jonas Hanson. The pistol was shown by Jackson to the people of Avnil; explaining that Jonas was not a divine being and that he wasn't utilizing magic. (SG1: "The First Commandment")
The PT92 seen in the show was shown to have a blue finish; along with the a frame mounted safety. The weapon also has a different shaped trigger guard, which assists in distinguishing this pistol from the Beretta 92FS.