A great mounting choice for your SKS or SVD made of instrumental steel, very strong but with great weight characteristics. This mount will fit any of these rifles with the standard side rail: SVD, SKS, NDM-96, Russian Tigr, Romak-3, SSG-97 and PSL rifles. The distance from the center of side rail to the center of the rings is 87 mm. This mount will hold zero upon being reinstalled. Solid mount at an excellent price. The side rail is fashioned from machined steel and is 20 mm wide, 5 mm thick and 120 mm long and comes with mounting hardware.