A setting tool for driving fastening elements in a constructional component, includes a muzzle (14), a bolt guide (15) located in the muzzle (14), a magazine (20) for fastening elements (50) and releasably mountable on the tool housing (11) and having a connection section (21) provided at an end of the magazine (20) adjacent to the muzzle (14) and with which the magazine (20) is secured to the muzzle (14), and a connection device for releasably mounting the magazine (20) on the housing (11) and including a snap device (30) located between the magazine (20) and the housing (11) and having a snap member (33) and a counter-snap member (34) engageable with each other in a snap position (35) of the magazine (20), with the snap device (30) applying pressure to the muzzle (14) in the snap position (35).