A red-dot sight with a supremely versatile base that fits a Weaver/Picatinny rail and is also directly mountable to DeltaPoint Pro standard by virtue of its special footprint. These highly advanced red dots are also waterproof and include a 12-hour auto shut-off function to prevent battery consumption. This model features 4 interchangeable reticle options. 1x Red Dot With 10 Brightness Settings 4 Interchangeable Reticles Waterproof Includes Deltapoint Pro (Shield Rms/sms) Footprint For Direct Mounting 12-hour Auto Shut-off DIAMETER: 25x18 mm a 0.98"x0.7" LENGTH: 49.7 mm - 1.96" WEIGHT: 65 gr. - 2.29 OZ DOT SIZE: - Dot size: 4 M.O.A. / Circle size: 40 M.O.A. / Cross size: 50 M.O.A.