Russian made Tula EST steel side dovetail base for SKS rifles. Gunsmithing is required for installation (drilling two holes in receiver, installing two rivets in it and drilling two holes in wooden bed for the screws). Weight is 100g. Two rivets, two M4X12 screws with two bolt hole bosses are included. There are also two holes for retaining pins (not included). This is so called “low” dovetail, you can use AK specific mounts with it.