This Leupold VX-R 3-9x40mm scope with FireDot 4 reticle features quantum optical system, index matched lens system, 2nd generation argon. krypton waterproofing, generous eyebox, FireDot push button illumination, blackened lens edges, twin bias spring erector system, one turn extended range focus, motion sensor technology, tactile power selector, and 6061-T6 aircraft quality aluminum construction. Leupold VX-R 3-9x40mm Matte FireDot 4 110687