The Forward Sling Mount is a sling attachment for the Mossberg 590A1 series of shotguns which clamps onto the barrel and mag tube. Designed specifically for the A1's heavy walled barrels, it can be configured for use with either Push-Button Sling Swivels or clip-in style attachments such as the MS3 Paraclip, the HK hook, ITW MASH hook, and others. Made from precision cast steel that is Melonite treated for wear and corrosion resistance. Dedicated fit for Mossberg 590A1 models with factory extended mag tube and will not fit other Mossberg models.