Installed and then removed. Going a different route. Part number 93170, no marks or scratches....looks new. This allows an AR based collapsible stock and grip to be added to your shotgun. You will need to supply a buffer tube, castle nut, stock and grip to complete the conversion, those parts did not come with the kit. I'm asking $ 60, add $5 for USPS delivery. Or maybe you have something for trade/partial trade? I am looking for a rail, keymod/m-lok/picatinny, that will either install on a stock barrel nut, or one of those "BAR" styled ones with the special barrel nut like Aero Precision uses on their E1 type uppers. I'm in the Olympia area.