Fixxxer Heavy Duty Quick Detach Push Button Strap Swivel Set Picatinny Mount 20mm Fixxxer Heavy Duty Quick Detach Push Button Strap Swivel Set Picatinny Mount Black 20mm Rail Mount QD Heavy Duty Quick Detach Push Button Release Sling Strap Set Mount Hunting Acceossries Fits on 20mm Picatinny / weaver rails, Allowing swivel capability to your strap, Compatible with Large 1-1/4" push button sling loop Simply push button to detach and attach swivel. Quick- detach feature provides emergency weapon install and release. Fixxxer Brand