The Deluxe Heatshield with mounted Ghost Ring Sights is an innovative solution to the problem of installing combat sights on a shotgun. Unlike other models this heatshield fits all 12, 16, 20 and .410 gauge non-ribbed shotgun barrels. AR-15 style fixed nylon ghost ring sights further enhance the high quality blued steel heatshield which has elongated cooling slots. Heatshield fits all 12, 16, 20 and .410 gauge non-ribbed shotgun barrels.