QD Swivel Sling Adapter — Special Operations Equipment
Sling Swivel Mount | Bog
Z200 Heavy Duty Picatinny Rail Mount Sling Adapter with Quick Detach Sling Swivel
Amazon.com : SAWKE QD Sling Swivel Sling Mount Gun Sling Attachment, Rifle Sling Adapter Attachment, with Quick Release Button, for Two Point Sling, No Loop : Sports & Outdoors