The Kahles K525i DLR rifle scope combines maximum optical performance and precision with unique handling and ergonomics. A rugged riflescope for professionals, with windage optional left or right, precise illuminated reticles in 1st focal plane and the unique TWIST GUARD windage. The Right vs Left hand difference is which side the windage knob is on. Left hand, left windage knob, Right hand, right windage knob.Midway is able to offer you this product at a great value because it has been used as a demo. It may have light handling marks, but still holds the same quality and warranty that is Kahles. FeaturesMaximum optical performance - field of view, high contrast image, high definitionAbsolutely reliable repeat accuracy and precise, clearly defined click mechanismOptical left or right side windageParallax wheel integrated into the elevation turretInnovative Twist Guard windagePrecise illuminated reticle in 1st focal plane100 clicks per rotation