Leupolds aluminum Rifleman mounts are an economical alternative to steel mounts yet these rings and bases still provide the strength and accuracy you expect from Leupold. This model is designed to fit a 3/8″ rail while using any riflescope with a 1″ maintube. Our Rifleman mounting systems add exceptional strength to your rifle without adding excessive weight. Rifleman scope rings are made with the proven cross-bolt design and will fit Rifleman scope bases as well as any Weaver-style scope base. The Rifleman 2-piece bases provide a reliable highly stable platform for mounting Weaver-compatible optics. Constructed of anodized aluminum with steel screws these bases install easily on a variety of rifles and shotguns and offer lasting rigidity for reliable performance in tough environments.