The SIG Sauer P250 is a modern pistol of US origin. The P250 pistol is a modern handgun incorporating the latest technical advances in weapon design for military and law enforcement. Like other SIG Sauer pistols, the P250 pistol is a short recoil operated, locked breech pistol. It uses the typical SIG Sauer cam-operated barrel, which locks into the ejection port on the slide.
A key feature of the pistol is its modular design. The main module of the P250 is an internal stainless steel frame fire control unit which consist of the integrated fire control group (trigger, hammer and all necessary linkage and springs), ambidextrous slide release (one on each side of the pistol), ejector and four slide rails. This steel receiver unit is used in every P250 grip module, top end, and chambering combination and is inserted into the grip frame module and held in place by the axis pin of the disassembly lever.
The automatic firing pin lock and double-action trigger ensure safe carrying of the weapon and provide instant readiness without actuating a manual safety.
Distinctive high-contrast sights, in conjunction with the ergonomically correct grip, ensure rapid target acquisition and engagement, even under poor lighting conditions.
The magazine catch can easily be reconfigured for left or right-hand operation. All other operating controls are designed so they can be operated from either side.
The full-size and compact grip modules feature an integral Picatinny rail mounting-bracket at the lower forward edge of the module to allow the mounting of laser sights, tactical lights, and other accessories. Before the introduction of the Picatinny rail SIG used a differing Rail Integration System on the P250 Compact.
The closed design of the pistol helps keep dirt and other debris from entering the pistol, ensuring proper function in harsh environmental conditions.