Our Choate SKS Scope Mounts are second to none in quality and workmanship. They are invest cast out of 4140 steel and blued to match the gun's finish. These mounts are designed to use Weaver type one inch rings and are raised to allow the shooter to use the iron sights as well as a scope. This mount requires drilling and tapping of the receiver to install (needs a gunsmith or machinist to mount !).