This DNZ Scope Mount - Howa .1500 SA is made lightweight strong and tough enough to handle extreme changes in temperature and still work perfectly. Made and packaged in the USA this scope mount is made from high-grade aluminum that is 67% lighter than conventional steel mounts. There are no moving parts between the scope and the rifle and the screws on the DNZ Scope Mount - Howa .1500 SA have 4 times the threads of a conventional mount for more stability.