Nikon Buckmasters II 3-9x40 Rifle Scope, featuring BDC Reticle, 33.8-11.3 ft field of view at 100 yds, 3.6 inches eye relief, 1-inch tube diameter, 1/4 MOA adjustment graduation, 100 yards parallax setting, 13.1 oz weight, 12 inches length, waterproof, fogproof, shockproof.