Product DescriptionThe BSA RD30 is a versatile 30mm red dot sight built for quick target acquisition on rifles, shotguns, handguns, bows, and crossbows. It features an integral 5/8" Weaver-style mount that is also compatible with a 3/8" dovetail rail, plus a 5 MOA red dot with an 11-position brightness rheostat. Fully coated optics, unlimited eye relief, and precise 1/2 MOA windage/elevation adjustments deliver dependable performance in daylight and low light.Product Highlights30mm objective with fully coated optics for bright, clear sight pictures5 MOA red dot and 11 adjustable brightness settings for various lighting conditionsIntegral 5/8" Weaver-style mount; compatible with 3/8" dovetail railsParallax free to 50 yards with unlimited eye reliefLightweight, water-resistant and fogproof design for field durabilitySpecsMagnification: 1xObjective Lens Diameter: 30 mmReticle: 5 MOA Red DotBrightness Control: 11-position rheostatAdjustment per Click: 1/2 MOA; Total Adjustment: up to 45 MOA (windage & elevation)Mounting: Integral 5/8" Weaver-style; compatible with 3/8" dovetail railParallax Setting: 50 ydEye Relief: UnlimitedField of View: 68 ft @ 100 ydLength: 3.8 inWeight: 5 ozPower Source: 1 x CR2032 lithium batteryBatteries Included: YesEnvironmental Resistance: Water-resistant; FogproofUPC: 631618101263Manufacturer Part Number: RD30Brand Name: BSADisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.