Leupold Rifleman® aluminum bases are an economical alternative to steel bases, without giving up the toughness and precision you expect from Leupold mounts. Rifleman® mounts add exceptional strength to mounting the scope on your weapon without adding excessive weight. Rifleman® rings are made with the proven cross bolt design and fit both Rifleman® bases and any Weaver style base. Constructed of anodized aluminum with steel screws, these bases install easily on a wide variety of rifles and shotguns, and offer durable rigidity for reliable performance in harsh environments.