Bought it to match the front flip sight...wish i hadn't. - Tacfire AR Rear Flip-Up Iron Sight w/Dual Aperture/Spring-Loaded

Going to stick to Made in USA...not sure if this was...or wasn't, but I could not find that info anywhere. Pretty sure this came from somewhere else.

Rear sight review:
The rear sight was poor quality, but worked. The rear sight screw that adjusts the aperture left and right was drilled in at an angle that canted the aperture to the left. Also, when I zeroed this in, the adjustment was pretty close to all the way to the left. Could be a problem with what I put it on, but I doubt it (stacking tolerances). The rear sight would flip up and lock in place, but the aperture would also flip forward from the inertia...(dab of locktite ought to fix that)...just an FYI. Push the button on the side and it flips up and locks. Need an Allen key head for tightening on your rail.