Leupold 183623 Mark 4HD Matte Black 4.5-18x52mm, 34mm Tube, Illuminated FFP PR1-MOA ReticleReady your rifles with a versatile Mark 4HD. We took the performance of its predecessors and gave it a slimmer maintube that's been packed full of professional grade features. The Mark 4HD provides you with an accurate and reliable option for close quarter engagements, long range dominance and everything in between. They're available with a three turn elevation dial for unmatched confidence at extreme distances, a precise ZeroLock windage adjustment