The GT™ Mil-Force Swivel is a Patent-pending design constructed from investment cast steel. Refined lines reduce overall weight while increasing strength. Meets or exceeds all military specifications. Industry-leading strength is suitable for the hardest working firearms on Earth. Fits any standard swivel stud. Our GT-MIL-FORCE Swivel Adapter allows our URBAN-SENTRY Hybrid Sling to be used on the standard Swivel Studs that most weapons manufacturers include on their weapons.