Nikon Monarch 3-12x 42mm ScopeMatte - Part# 8420 This Nikon Monarch Riflescope BDC allows hunters to hold dead-on at ranges exceeding those previously thought possible. The BDCs unique see-through ballistic circles offer an incredible advantage for long range shooting, yet allow a normal sight picture for shorter-range shots where the crosshair itself is the aiming point. It features the Monarch Eye Box Technology, Smooth Zoom Control, Enhanced Mount Ring Spacing, Interchangeable Turrent Technology, and One-Piece Main Body Tubes. The Monarch Riflescope is Sunshade Adaptable and is waterproof, fogproof, and shockproof. Features: Locking Side Focus Parallax adjustment Larger 42 mm objective Enhanced Mount ring spacing Quick Focus eyepiece Hand Turn Reticle adjustments that features Nikon's new Interchangeable Turret Technology - 1/4 MOA Fully Multicoated - Nikon's UCC system provides 95 percent Light Transmission Waterproof,Shockproof,Fogproof Nikon's unique zoom control with rearward facing numbers One-piece main body Sunshade adaptable Nikon's Lifetime Full Warranty.