Hawke Sport Optics XB Zoom Crossbow Scope XB30 FFP 2-8x36 470-510 fps Black. 5 MOA Adjustment Range: 0.5 MOA W/E Travel at 100 Yds: 120 MOA Weight: 16 oz Field of View Linear: 70.1 - 16.8 ft at 100 yds Eye Relief: 2.8 in Length: 9.7 in Adjustment Type: MOA Exit Pupil: 0.71 - 0.18 in Parallax: 50 yds Focus Range: 50 yds Illumination Color: Green Red Features of Hawke Sport Optics XB Zoom Crossbow Scope XB30 FFP 2-8x36 470-510 fps 2-8x36 Calibrated for Bow Speeds of 470-510 fps First Focal Plane Optical System 1/2 MOA Capped Turrets Variable Magnification Ring with Throw Lever Fast Focus Ocular Red/Green Illumination with 5 Levels 30mm Monotube Chassis 36mm Objective 21 Layer Multi-Coated Lenses Package Contents: Hawke Sport Optics XB Zoom Crossbow Scope XB30 FFP 2-8x36 470-510 fps Flip up covers Hawke Sport Optics 12322: XB Zoom Crossbow Scope XB30 FFP 2-8x36 470-510 fps Black