This mount is adjustable for eye relief. The scope rings can be placed in four locations along the base. Simply remove the base screws, move the rings to the desired location, and re-install the mount screws. Package includes: - 1 mount - 2 mount screws - 8 ring screws specifications: - fits: MIL-STD-1913 Picatinny rails - ring diameter: 34mm - finish: matte black