Semi-automatic or fully automatic firearm

Abstract

A semi-automatic or fully automatic firearm () having a barrel (), the rear end of which is in the form of a cartridge chamber (), in which each round can be inserted from the rear; a breech body () that is movable in a longitudinal direction of the barrel between an open position for releasing the cartridge chamber () for reloading a round and a locking position that locks the cartridge chamber (), wherein in the locking position the breech body () closes the cartridge chamber () at the rear and the cartridge casing acts as a thrust bearing, wherein the firearm () has a breech body locking device () that is designed to move a breech body lock from a breech body release position for releasing the breech body () to a breech body locking position for locking the breech body () and from the breech body locking position to the breech body release position, wherein the breech body locking device () has an electromagnet () for moving the breech body lock from the breech body release position to the breech body locking position, and/or an electromagnet () for moving the breech body lock from the breech body locking position to the breech body release position, as well as a firearm () with an electromagnetically driven firing pin ().