TROY Industries QD360, QD Sling Mount with Swivel, 360 Degree Push Button, Black Finish, Fits Battlerail 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.