Device for medicament delivery with syringe-like usability having a locking mechanism. A device for medicament delivery with syringe-like usability with at least one grip (30), at least one plunger rod (20) being substantially rotationally fixed relatively to the grip, and at least one locking mechanism (17) configured to substantially inhibit movement of the plunger rod in a longitudinal direction of the device for dose delivery when being in at least one locking position. The locking mechanism comprises at least one rotatable part (40) that is substantially fixed in a longitudinal direction, that is rotatable relatively to the grip, and that interacts with the plunger rod. The device comprises at least one indicator drum (60).