A surgical stapling device including a handle assembly, a body portion, and a head portion is disclosed. The handle assembly includes a firing trigger. The body portion extends distally from the handle assembly. The head portion includes an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The shell assembly includes a pusher and an inner guide portion. The pusher includes at least one slot therein and is movable in relation to the anvil assembly between retracted and extended positions. The inner guide portion is disposed adjacent at least a portion of the pusher and includes a raised boss extending therefrom. The raised boss is configured to shroud the slot in the pusher when the pusher is in the retracted position.