A two body syringe carrier assembly for use in an injection device is presented where a force dampener (58) is operatively connected to the two bodies (56, 57) to dissipate spring force at the completion of the penetration and/or injection steps. The injection device has a generally elongated tubular housing (12), a syringe (16) containing medicament and having a needle, a needle shield slidably arranged to the housing and protruding a distance outside the front end of the housing, a plunger (60) arranged to act on the syringe and a pre-tensioned drive member (64) arranged the drive the plunger.