Leupold’s 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