Boasting Nikon's fully multicoated optical system and innovative adjustment technologies, the tried-and-trusted ProStaff 3-9x40 riflescope offers a superior hunting performance at a price that fits into the budget of virtually any hunter. The scope's optical system transmits up to 98 percent of available light, ensuring maximum brightness from dawn to dusk. To simplify field adjustments, Nikon also integrated a zero-reset turret into the riflescope. Just sight in as usual, lift the spring-loaded adjustment knob, rotate to your "zero," and re-engage. Field adjustments are now as simple as dialing in your subsequent ranges. Nothing boosts a shooter's level of confidence better than generous, constant eye relief, which is why Nikon provided 3.6 in of eye relief in the ProStaff. No more rough kickback from heavy recoiling cartridges, lightweight rifles, severe shooting angles, and just plain excitement. Other features include a Nikoplex reticle; a nitrogen-filled, O-ring-sealed housing that's waterproof and fogproof; support for an optional sunshade accessory for bright, rainy, or dusty conditions; and a quick-focus eyepiece. Offering enough power for the longest shots and a wide field of view for thick brush or timber, the ProStaff riflescope carries a lifetime warranty.