The BSA Sweet 22 AO is calibrated for the .22LR 36 gr, 38gr and 40gr bullets. This scope features a long eye relief for comfortable viewing, an adjustable objective, as well as the preferred duplex reticle. The Sweet 22 comes standard with 2pc dovetail rings and fully coated anti-reflective lenses.FeaturesBullet Drop Compensating TurretsFully-coated emerald lenses Adjustable ObjectiveAll Aluminum one-piece main tubeWaterproof, shockproof and fogproofIncludes 2 pc. dovetail rings