Engineered for today's high-performance crossbows, the RavinA(R) 550 FPS Scope delivers fully multi-coated optics, illuminated ranging reticle, and the new Speed Lock system that lets you dial in your FPS for next-level confidence in every shot. Speed Lock automatically adjusts your reticle depending on crossbow speed, so you can take your best shot every time you pull the trigger. The 1.5x5x magnification and wide field-of-view let you scan the landscape, and the red/green illuminated reticle features indicator marks for shots between 20 and 100 yards in 10-yard increments. The Scope is 100% waterproof, fogproof and shockproof, and comes complete with rings for easy mounting. Built for crossbows up to 550 FPS 1.5-5x magnification Fully multi-coated optics for superior contrast and clarity 8-dot illuminated reticle calibrated for 20-100 yards Reticle illuminates in red or green Speed Lock feature lets you lock in your FPS adjustment 100% waterproof, fogproof and shockproof Variable speed and arrow drop compensation setting 30mm tube Rings included Order today!