Genuine Benelli M2 Pistol Grip Buttstock.  Mesa Tactical Barrel Clamp,  Dave's Metal works extended magazine tube with long spring and aluminum cap, Mesa Tactical 4 round buttstock shell carrier fits in stock sling pocket on either side and still allows a sling on the oppostie side.  Original pocket sling mount.   There are some minor handling marks on the tube from a clamp but otherwise everything else is in near new condition.