BlackHawk 4-20x50mm Tactical Rifle Scope is a variable zoom scope from Blackhawk that packs a punch. This large riflescope features an incredibly wide 4x to 20x magnification range, making it ideal for everything from precision long range sniping to medium range target shooting. Fully multi-coated optics and a wide objective lens make for crystal clear images with little to no light lost, giving this Blackhawk scope excellent usability in low light situations. The Black Hawk 4-20x50mm Mil-Dot Scope has exposed windage and elevation turrets (no more caps to lose) and a side parallax adjustment knob for extra fine-tuning. The high-profile turrets are complete with a reset to zero function, so you can make repeatable shots time after time. Black Hawk has designed all of these turrets to use precise 1/10 mil adjustments and to turn easily with a single finger. Waterproof, shockproof, and argon-sealed to completely eliminate interior tube fog, the BlackHawk 4-20x50mm Variable Zoom Riflescope is all packaged in a single-piece, 30mm tube that is incredibly durable and surprisingly lightweight. Purchase the Blackhawk 4-20x50mm Mil-Dot Reticle Rifle Scope for a powerful scope that will have you pegging targets from yards away in no time.