Air gun rated, the Hatson Optima 4x20 Riflescope elevates your expectations for a quality modification. These Scopes from the geniuses at Optima feature a 4x magnification that is perfect for hunting varmints and targets. With 1/4 MOA click adjustments, the Optima One Size 4x20 Scope provides a clearer view with exceptional magnification. Thanks to fully multi-coated optics this scope is great for low-light conditions. Water, fog, and shock resistant the Optima 4x20mm Scope can go with you just about anywhere and under any conditions.