Just received the UWL I ordered recently. When installing the batteries, after screwing down the tail cap, the middle part, the one that has the mount attached to it, detached itself from the lamp section of the light. Upon further inspection, you can pull straight back on the middle section and it will detach from the first. It doesn't look like the threads are cut correctly on the inside of the middle (mount) part.
Am I doing something wrong or is this a known issue?