ABSTRACT The invention relates to a medicament delivery device (1 100) for delivering one or more solid dose pegs (10 110) through the skin. The device (1 100) has a number of exit openings (9 109) corresponding to the number of solid dose pegs (10 110) to be delivered. A detachable portion (3 103) of the device (1 100) is removed before use to uncover the exit openings (9 109) and a release rod (17 117). When the exit openings (9 109) are pressed against the skin the release rod (17 117) automatically disables a safety mechanism adapted to prevent unintended activation of the device (1 100).