The Boss Hogg's Rear controlled yardage adjustment, makes changing your yardage faster & easier, requiring less movement for stealthy adjustments in the field. Boss Hogg sight sets a new standard in pin sights with the introduction of both 2nd and 3rd axis micro adjust leveling. Enjoy the rugged hard mount, coarse vertical & horizontal adjustments makes this sight scale compatible with archery programs. Its special HRD (Hardened Rail Design) technology no bushings/no slop/no buzz. Rear sight adjustment also allows the shooter to monitor his settings while at full draw.