A surgical stapling device includes reload assembly that is supported on a distal portion of an elongate shaft of the surgical stapling device. The reload includes a housing, a pusher assembly movably supported within the housing, a knife carrier movably supported within the pusher assembly, and an annular knife supported on the knife carrier. The elongate body includes a pusher drive member and a knife carrier pusher. The knife carrier includes first engagement structure that is configured to releasably engage second engagement structure formed on the knife carrier pusher to releasably couple the knife carrier pusher to the knife carrier. The knife carrier supports at least one detent that is movable into contact with a distal portion of the pusher drive member as the knife carrier is retracted to urge the first engagement structure out of engagement with the second engagement structure to uncouple the knife carrier from the knife carrier pusher.