This rear sight rail is made by precision CNC machines. It fits AKM (T.Marui GBB). The mount is constructed from 6063 aluminium with mil-spec top rail, it has matt black hardcoat-anodized finishing. The transverse screw adjusts the side-way setting of the mount. The 3 vertical screws (forwards & backwards) set the horizontal platform of the mount.All products are made for airsoft only. They are not made for real steel firearms.※個体差により加工・調整が必要な場合があります。※画像とは色・質感が異なる場合があります。