Bushnell Elite 4200 4-16 x 50 Matte Side Focus with Rainguard Riflescope Rainguard, Fully multi coated optics Magnum recoil-proof construction, One-piece hammer-forged tube 100% waterproof/fogproof/shockproof construction Dry-nitrogen filled, Specialty Features-Side focus from 25 yd. - infinity