Not on a wingmaster but an older Express Magnum with the flex tab upgrade I got at the pawnshop for $140 OTD. I specifically wanted a vent rib 18" and the factory ones are somewhat rare so that's the route I took. Used a pipe cutter to mark, angle grinder to cut, files and fine grit for finishing with cold blue. Used a Tru-Glo stick on fiber optic piece and painted the whole thing sans furniture in flat black Krylon. I've got under $300 into it including the Speed Feed IV-S, side saddle, Spector 3 point, Sage sling adapter up front, +2 ext., high-vis follower and a punsiher sticker on the side for good measure. Still need a sling adapter for between the stock and reciever as I have found that would be the most comfortable way for me to mount the 3-point along with the plate inbetween the extension and barrel lug and hopefully have chokes installed.