I received this in trade last week with some other stuff. It was needing the locking screw and bar, and those have been replaced with the Revision B parts, which were upgraded. Sight is in very good condition, and everything works on it as well. Shipped to the lower 48 for $50.00. I prefer a USPS money order for payment, item will ship via priority mail with insurance. IM or email if interested...Tommy.