Leupold Ruger M77 Ring Mounts were constructed from solid steel to ensure maximum ruggedness and dependability in the field. Not only are these rings incredibly durable, but they are also lightweight enough that they will not slow you down - no matter what. These ring mounts come in several different models - three with a 1-inch tube (low, high, and super-high), and three with a 30 millimeter tube (medium, high, and super-high). With so many options to choose from, you can select the Leupold Ruger M77 Ring Mount that suits your weapon and scope. Best of all, these ring mounts are high-quality, yet affordable!