The REVIC Optics EXO MOA Extreme Sight Set for Muzzleloaders is a revolutionary open-sight ballistics system custom-engineered by Gunwerks to maximize effective shooting distances without violating strict regional magnification bans. Operating much like a high-end rifle scope elevation turret, the micro-adjustable rear peep sight mechanically raises and lowers its 0.050-inch aperture to give hunters precise, repeatable bullet drop compensation across varying field distances. The system features a generous thirty-two and a half minutes of angle of adjustment travel that maps into crisp half-MOA click values when configured with its standard twenty-seven and fifteen-sixteenths inch sight radius. Up front, the heavy-duty barrel-clamp globe sight slides directly onto standard point-eight-seven-five-inch barrel profiles, locking down securely via dual indexing set screws. Delivered with an interchangeable front reticle card insert for an entirely customizable sight picture, the rear turret assembly is also fully compatible with a custom-etched Ballistic Data Ring™ to convert standard MOA adjustments into yardage values. REVIC Optics EXO MOA Extreme Sight Set for Muzzloaders w/ Adjustable Rear & Barrel-Clamp Front, AY-R-E8506