KOMET, HPV, Comer, Rotax and Leopard Flat Adapter Plate - Burris BMC 567 flat engine mount is CNC machined from 6061 T-6 aircraft quality aluminum to insure a durable product. This mount fits the KOMET, HPV, Comer, Rotax, Leopard and other engines produced with 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).