Ultimate Arms Gear Two 1.50" QD Release Slot Loop Rotating Push Button Swivels Locks to any Mount Attachment Rifle Or Shotgun for Springfield Armory, M1A, M1-A Garand/Carbine, Socom Rifle Set of Two QD Quick Detach Puch Button Swivels Steel 1.50" (1-1/2-Inch). Designed for Slings 1.50" Wide or Less. Super Heavy-Duty Push Button Swivels, Will Hold Up To Years Of Heavy Outdoor Use. Quick and Easy Installation. Compatibility with a Wide Variety of Sling Types and is Quickly and Easily Installed or Removed from a QD Sling Socket via its large Push Button. All Steel Construction, Black Finish.