Mincon Products – RC Products MR132: 137mm(5.4″)-146mm(5.75″) MR132 Hammer 4 1/2″ Remet MR132 Hammer 4 1/2″ Remet – Low Air MR132 Hammer 4 1/2″ Metzke MR132 Hammer 4 ½” Metzke – Low Air MR120: 127mm(5″)-143mm(5.625″) MR120 Hammer 4″ Remet MR120 Hammer 4″ Metzke MR120 Hammer 4 1/2″ Remet MR120 Hammer 4 1/2″ Metzke MR120 Hammer 115 ARDX MR116: 121mm(4.75″)-127mm(5″) MR116 Hammer 4 ” Remet MR116 Hammer 4 ” Remet – Low Air MR116 Hammer 4 ” Metzke MR116 Hammer 4 “Metzke – Low Air MR116 Hammer 4 1/2 ” Remet MR116 Hammer 4 1/2 ” Remet – Low Air MR116 Hammer 4 1/2 ” Metzke MR116 Hammer 4 1/2 ” Metzke – Low Air MR109: 114mm(4.5″)-121mm(4 3/4″) Mincon MR109 (4″ Remet) Mincon MR109 (4″ Metzke) MR92: 102mm(4″)-115mm(4 1/2″) Mincon MR92 (3.5″ Remet)