Bostitch M3 O-ring kits William Hendricks Posted on Posted in Bostitch 3x Bostitch M111 O-ring Rebuild Kits3 O-ring Kits for the bostitch M3 For Bostitch flooring cleat stapler MIIIFS M3FS MIIIFN M3FN MIII886 MIII812 KTBO111 RBK9