Quick Detachable; Positive Locking - The Industry Standard Uncle Mike's locking, proven, Super Swivel™ design found on hundreds of thousands of guns. Holds securely on the base, yet detaches quickly and easily for those times when you'd rather not have the sling mounted on the gun. To Use: Unscrew the swivel-lock and press the spring-loaded plunger. Disengage the gate from the pin and rotate it out of the way. Insert the pin through the base and rotate the gate back into position to engage the pin. Tighten the lock for fail-safe attachment that won't open accidently. Available for 1" and 1½" wide slings. SPECS: Steel, blue .