The 2-7x28 Edge Pistol Scope from BSA Optics is a simple but effective scope for pistols wit ha duplex reticle. This scope has a parallax adjustment set at 50 yards and windage and elevation adjustments at 1/4 MOA with an adjustment range of 25 MOA. This multi-coated optic provides a clear sight picture for instant target acquisition. This scope has a generous eye relief of 11-20 inches which allows it to be used as a scout scope. This scope has a 1? tube diameter and is waterproof, fog proof, and shockproof.