Pistol with barrel locking device

A pistol, with a housing, a barrel slide which is guided displaceably in the longitudinal direction thereon, a barrel which is guided in the barrel slide, and a locking device which is formed by a head of the barrel, a locking block secured to the head in the longitudinal direction and a pair of locking bodies guided in a transverse groove of the head, which locking bodies engage in recesses on the inside of the barrel slide by the action of the locking block and thus lock the barrel to the barrel slide, wherein the locking block has two first wedge surfaces which are symmetrical about a longitudinal center plane, the locking bodies are elongated cylinders, the circumferential surface of which has two parallel planar guide surfaces resting in the transverse groove, a second wedge surface which faces the other locking body in each case and interacts in a sheetlike manner with the first wedge surfaces of the locking block, and an engagement surface which faces away from the other locking body in each case and is intended for engaging in the respective recess of the barrel slide.