The DiOptical RV1-17 has been specifically designed to meet military specifications for operators in combat conditions. It has been proven to hold zero after more than 7,000 rounds of live fire. It features a 27 degree field of view, Arms #17 mount manual brightness control, night vision compatibility, aircraft grade aluminum body with a matte black hard anodized finish, precise elevation and windage adjustments. It is run on 1 standard AA battery with a continues use of up to 20,000 hours on a medium setting. DI Optical RV1-17 RV1 with Arms #17 Mount