KOMET, HPV, Comer, Rotax and Leopard 10 Degree Adapter Plate - Burris BMC 568 10° engine mounts are CNC machined from 6061 T-6 aircraft quality aluminum to insure a durable product. This mount is designed to work with KOMET, HPV, Comer, Rotax, Leopard and other engines that share the popular 80mm x 102mm mounting pattern. All Burris mounts are made with exacting measurements for the best possible product on the market. Go with the leaders in the industry go with Burris!! Burris mounts come complete with all necessary hardware to bolt your engine on (chassis plate required).