A receptacle section for an aerosol provision article, the aerosol provision article for generating a flow of aerosol in use, the receptacle section arranged for having installed therein an activatable element for modifying, once activated, a property of said flow of aerosol, the receptacle section being arranged to apply, on installation of said activatable element in the receptacle section by a user, a force to said activatable element to activate said activatable element, wherein the receptacle section comprises a first portion and a second portion, the second portion being moveable relative to the first portion between a first position and a different, second position, wherein movement of the second portion from the first position to the second position causes said force to be applied to activate said activatable element when said activatable element is installed in the receptacle section (102, 202), wherein the receptacle section comprises at least one activating element operable to move between a first element position and a different, second element position, wherein movement of the second portion from the first position to the second position causes the at least one activating element to move from the first element position to the second element position, and wherein movement of the activating element from the first element position to the second element position causes said force to be applied to said activatable element installable in the receptacle section; and wherein the receptacle section defines a channel for receiving said activatable element, wherein the at least one activating element comprises a resilient member (250, 251) extending along at least a portion of the channel, and wherein the resilient member (250, 251) is operable to bend between the first element position and the second element position, wherein in the second element position at least a portion of the resilient member (250, 251) protrudes into the channel, thereby to apply said force to activate said activatable element received in the channel in use. wherein the receptacle section comprises a first portion and a second portion, the second portion being moveable relative to the first portion between a first position and a different, second position, wherein movement of the second portion from the first position to the second position causes said force to be applied to activate said activatable element when said activatable element is installed in the receptacle section (102, 202), wherein the receptacle section comprises at least one activating element operable to move between a first element position and a different, second element position, wherein movement of the second portion from the first position to the second position causes the at least one activating element to move from the first element position to the second element position, and wherein movement of the activating element from the first element position to the second element position causes said force to be applied to said activatable element installable in the receptacle section; and wherein the receptacle section defines a channel for receiving said activatable element, wherein the at least one activating element comprises a resilient member (250, 251) extending along at least a portion of the channel, and wherein the resilient member (250, 251) is operable to bend between the first element position and the second element position, wherein in the second element position at least a portion of the resilient member (250, 251) protrudes into the channel, thereby to apply said force to activate said activatable element received in the channel in use.