The KonusPro AS34 has been constructed with quick target acquiring properties. Its outer diameter of 34mm can withstand the most extreme conditions. An intregated tri-rail accepts all your accessories. This model is completely waterproof with a dual illuminated etched mil-dot reticle for low light shooting and a wide angle field of view for fast moving targets. The base will mount on Weaver or Piccatiny rails as well as 22/small bore rails. Dry nitrogen filled for waterproof fog proof and shockproof performance Fully multi-coated optics Engraved and dual-illuminated Mil-Dot reticle Locking tactical turrets that are resettable to zero Fast focus eyepiece Illuminated level bubble Reversible mount fits weaver picatinny and 3/8" dovetail mounting rails