Mossberg Ghost-Ring Sight Kit 500/590. OpticsPlanet is an Authorized US Distributor for Mossberg Gun Parts. The Ghost-Ring Sight - the superior style of metallic sight for sporting rifle and security shotgun use. Gives an unobstructed down-range view of target. Easy to use. Permits instantaneous target acquisition with no loss in precision. For Mossberg 12/20 gauge. Specifications for Mossberg Ghost-Ring Sight Kit 500/590 95300: Manufacturer: Mossberg Gun Make: Mossberg Gun Model: Mossberg Model 590 Mossberg Model 500 Condition: New Gauge: 20 12 Finish: Black Package Contents: Mossberg 95300 Ghost-Ring Sight Kit Mossberg 500/590 We offer the complete line of Mossberg Gun Parts. For our complete selection of products by Mossberg on sale please visit our Mossberg page. For more Gun Parts please visit our Gun Parts store section. What firearm models does the manufacturer say Mossberg Ghost-Ring Sight Kit 500/590 95300 is compatible with? The manufacturer suggests that Mossberg Ghost-Ring Sight Kit 500/590 95300 is compatible with Mossberg Model 500 Mossberg Model 590Mossberg Ghost-Ring Sight Kit 500/590