This is a TROY Sling Mount known as the QD360, model SMOU-PBS-00BT-00.
TROY Industries was founded on the principle of making reliable" innovative products that will function without question when lives are on the line. All Troy products are American made and designed to perform flawlessly under intense battle conditions. Troy Industries is the choice of Special Ops" Law Enforcement and War Fighters worldwide.
Features:
360 Degree Push Button
QD Sling Mount with Swivel