This is a Vltor made lower for Spirit Arms This lower is identical to the Vltor ts-3 lower just not marked. It comes with the trigger guard in stalled along with a new Vltor proprietary side saddle ( made for the receiver) 3 position quick detach sling plate, and a new 5 position Vltor tube with detent and detent spring installed. Enhanced grip in the front of the magazine well, 7075 forging. Sold********* shipped to FFL