A surgical instrument (500) comprising: a body portion (512)； a loading unit (16) operatively coupled to the body portion (512), the loading unit (16) including a cartridge (54), the cartridge (54) housing a plurality of fasteners (66)； a drive assembly (212) configured to translate through the cartridge (54) to eject the fasteners (66) from the cartridge (54)； an indicator assembly (5) including a number of indicator pins (10), the indicator pins (10) being transitionable from a first position to a second position after ejection of the fasteners (66), the indicator pins (10) being substantially flush with a surface of the cartridge (54) when the indicator pins (10) are in the first position, and extending past the surface of the cartridge (54) when the indicator pins (10) are in the second position； and wherein the cartridge (54) includes a distal portion, and a longitudinally extending aperture (11) is defined within the distal portion, the indicator pins (10) being translatable through the aperture (11)； characterised in that: the indicator assembly (5) further includes a ring (13), the ring (13) positioned within the aperture (11), the ring (13) disposed around the indicator pin (10), one or more frangible fingers (12) joining the indicator pins (10) and the ring (13), the one or more frangible fingers (12) inhibiting transitioning of the indicator pins (10) from the first to the second position prior to actuation of the surgical instrument (500), the one or more frangible fingers (12) breaking in response to actuation of the surgical instrument (500).
