The Sig Sauer® Buckmaster™ 3-9x50mm BDC Riflescope is a performance-enhanced riflescope, specifically engineered to deliver optimal clarity and ethical shot placement at extreme distances. The Buckmaster riflescope features a hard-coat anodized, aircraft-grade aluminum tube, designed to deliver unmatched corrosion resistance and shockproof performance, while durable LensArmor™ coatings deliver superior scratch and abrasion resistance, and SpectraCoat™ performance coatings maximize light transmission and eliminate distortion for optimal clarity. The glass-etched Buckmasters-custom Bullet Drop Compensation (BDC) reticle comes equipped with holdover dots out to 500 yards for precise shot placement at long ranges. Better yet, capped adjustment turrets offer precise elevation and windage adjustments, and protect against accidental zero deviation during storage or transport. IPX7 waterproof.