An assembly for a drug delivery device (1) is provided comprising a first member (10) comprising a main body (14) and an elastically displaceable feature (13) connected to the main body, and an attenuation member (22), wherein the attenuation member mechanically cooperates with the elastically displaceable feature to influence the force which has to be exerted on the elastically displaceable feature to displace the elastically displaceable feature elastically with respect to the main body. Further using an attenuation member (22) in a drug delivery device (22) is proposed to tune the force required to elastically displace an elastically displaceable feature (13) of a first member (10) of the drug delivery device by bringing the attenuation member into mechanical cooperation with the elastically displaceable feature.
