The bsa sweet.22 ao compact provides all the features of standard sweet ao scopes in a package designed specifically for the ruger 10/22 and other small frame.22 rifles.Complete with 3 ballistically calibrated turrets for 36gr, 38gr and 40 gr cartridges.The sweet 22 ao compact also features an adjustable objective, fully coated lenses, 30/30 reticle and all aluminum construction.Includes dovetail rings.Adj Size: .25 MOAMagnification: 4-12xObjective: 40mm AOField Of View: 10 - 40 ft @ 100 ydsEye Relief: 4"Tube Diameter: 1"Length: 12.20"Weight: 21.80 ozReticle: 30/30 DuplexParallax Adjustment: 7.5 yds-InfinityProofs: Fog/Shock/WaterproofCoating Type: Waterproof, Fogproof, ShockproofOptic Coating: Fully Multi-CoatedOptic Coating: Fully Coated