Easily acquire ranges quick and accurately with the all The BUK OPS X-Factor crossbow range-finding scope. The X-Factor features a built-in angle-compensating laser rangefinder that is activated instantly with a simple press of a button. Hold the rage button to enable Active Scan Mode, to range moving targets. Combining all the top technologies with easy to use dependability. With the X-Factor Speed Dial feet per second (FPS) precision reticle, you can fine-tune your optic to match the arrow speed of your crossbow with a simple turn of a dial. Product Details Speed Dial FPS (feet per second) reticle 20-100 yard reticle marks Adjustable red/green illumination Automatic angle compensation adjustment Active scan mode follows moving targets 100 yard target range Up to 1200 yard reflective range Easy mounting & adjustment bracket