The SE-14, also known as the Separatist blaster pistol or the SR combat pistol during the era of the Clone Wars, was a standard blaster pistol manufactured by BlasTech Industries.
The blaster pistol known as the SE-14 was a simple design, consisting primarily of a tube with an attached grip, along with a small power pack positioned under the barrel.
It also went by the name SR combat pistol. Its price was 500 credits.

During the Clone Wars, the B1-series battle droids belonging to the Separatist Droid Army utilized the SE-14, and it was commonly called the Separatist blaster pistol. Due to the sensitive nature of supplying arms to an enemy of the Galactic Republic, BlasTech denied its involvement in its production. Regardless, the pistol continued to serve as a secondary weapon for the Droid Army throughout the war.
A more advanced model, the SE-14C, was introduced at a later time.
It is known that smugglers and other criminals made use of the SE-14, as seen when Ponda Baba attempted to shoot Luke Skywalker with one inside Chalmun's Spaceport Cantina.
The SE-14 as seen in Star Wars: Episode IV A New Hope is a modified Swiss Rexim-Favor submachine gun, which also appears in the film Alien.