The Monstrum Tactical Sling Mount with Picatinny Rail Base is a modular sling attachment point that installs to your Picatinny rail equipped rifle or shotgun. The Picatinny adaptor base is compatible with all standard Picatinny rail systems. The sling head can be attached and removed instantly from the base via the push button detach mechanism. The swiveling head provides free rotation of sling while remaining securely fastened to base. All Monstrum Tactical mounts and accessories comes with a lifetime guarantee.