Midwest Industries M-LOK Bipod Mount, Aluminum, Accessory, M-LOK Hand Guard, Black MI-MBP The Midwest Industries M-LOK Bipod Adapter was designed to work with Harris type bipods" and provides a single sling swivel stud for that purpose. Aluminum mount with steel stud. Midwest Industries is a proven leader in the firearm industry. Made in the USA" focusing on the small details to make your rifle platform better.