Calibrated for crossbows with speeds of 426-465 fps, this Hawke Sports Optics 2-8x36 XB30 Crossbow Scope will help you hit your target. The scope offers a bright, high-contrast view thanks to 21 layers of antireflective coating on all optical surfaces. Hawke's ZOOM FFP optical system lets you zoom in or out at any point on the magnification range knowing the distance markers-30 to 100 yards-are accurate. The 30mm maintube provides up to 120 MOA of elevation and windage adjustment at 1/2 MOA per click on the capped, low-profile turrets. The scope is nitrogen filled and O-ring sealed to be fog and waterproof. XB30 SR Illuminated Reticle Calibrated for 470-510 fps Illuminated center cross and horseshoe pattern Illuminated crosshairs for 40, 50, 60, 70 yd holds Five brightness levels Tapered side and bottom posts Use and Handling 1/2 MOA impact point correction 120 MOA elevation and windage adjustment ranges Parallax-free at 50 yd Construction Details 30mm single-piece maintube Lightweight and durable aluminum housing Focusing eyepiece with knurled, high-torque zoom ring Low-profile capped turrets Nitrogen filled, fog and waterproof