APEX COVERT DOVETAIL SIGHT BLACK 1 PIN .019 GREEN With micro-adjustable windage, over 120 pre-printed yardage tapes for precise calibration, Versa Pin Technology, an available detachable bracket and a new gear-drive elevation control for smooth adjustment. Fewer pins means more power than ever before. This sight offers a rear facing easy to see yardage tape for quick and easy set up.