The BSA Sweet .22 AO Rifle Scope is specifically designed for the .22LR. Complete with 3 ballistically calibrated turrets for 36gr, 38gr, and 40 gr cartridges, the Sweet 22 AO also features an adjustable objective, fully coated lenses, 30/30 reticle and 2 pc. dovetail rings Matte black finish. Waterproof, shockproof and fogproof. Product Specifications Magnification low: 3; Magnification high: 9 Objective lens diameter: 40 mm Adjustment MOA: 1/4 Lens Material: Glass; Lens: Fully Coated W/E Range: 35; Eye Relief: 3 inches FOV LOW @ 100 (ft): 34.2; FOV HIGH @ 100 (ft): 11.5 PARALLAX SETTING (yds): 7.5 to Inf. Reticle: 30/30 Shockproof, Fogproof, Waterproof Tube diameter: 1 , one piece; Aluminum Construction