Tactical Rear Shotgun Sight, Screw in - Tritium Night Sight Ghost Ring

LPA Brand Adjustable Tactical Rear Shotgun Sight. Green Fiber Optic Adjustable Ghost Ring. This rear Sight works on most Famous brands of Semi-Auto and Pump Shotguns such as Beretta, Benelli, Mossberg, Browning, Winchester, Ithaca etc... with barrel diameters ranging from .819" to .842" for standard shotguns, and .858" to .882" for heavier gauges. Center-to-center mounting hole distance: 1.7"