The Beretta 950 Jetfire is a semi-automatic pistol designed and manufactured by Beretta

Beretta

Fabbrica d'Armi Pietro Beretta is an Italian firearms manufacturer. Their firearms are used worldwide for a variety of civilian, law enforcement, and military purposes. It is also known for manufacturing shooting clothes and accessories. Beretta is the oldest active firearms manufacturer in the...

 since 1952. It builds on a long line of small and compact pocket pistols manufactured by Beretta for self-defense

Self-defense

Self-defense, self-defence or private defense is a countermeasure that involves defending oneself, one's property or the well-being of another from physical harm. The use of the right of self-defense as a legal justification for the use of force in times of danger is available in many...

. Based on very early Beretta models, the weapon is intended to be a very simple and reliable pocket pistol.
The Beretta 950 Jetfire is a simple blowback

Blowback (arms)

Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gases created by the ignition of the propellant charge....

 pistol with a single action trigger mechanism and tip-up barrel.