Weaver Base Top Mount - 423M
Each Weaver base is machined to tight tolerances for a custom fit.  These Aluminum bases offer maximum strength for rings to hold tight. Our extensive line of bases provides a precision fit to custom match your Weaver rings of choice. Whether you need a base to accommodate your modern sporting rifle, a competition pistol, inline muzzleloader or your favorite bolt-action hunting rifle; every one of our mounts delivers a solid start.