Geissele Heavy Duty Push QD Sling Swivel Button Black. 25" loop for 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. The QD swivel is constructed of steel for strength and durability to extremely tight machining tolerances and pull tested to over 450 pounds of tension. Specifications for Geissele Heavy Duty Push QD Sling Swivel Button: Manufacturer: Geissele Color: Black Fabric/Material: Nylon/Aluminum Gun Type: Rifle Condition: New Package Contents: Geissele Heavy Duty Push QD Sling Swivel Button Geissele 04-854: Heavy Duty Push QD Sling Swivel Button Black