A bad example, or.... ?
My example wouldn't go down over the receiver without force--didn't do the anodizing any good. It appears the rear hole wasn't threaded either, as the bolt just spins. However, I was able to make it work on a 20ga Mossberg that I have. It almost appears this was meant for a 20ga receiver, but I don't see that Aimtech makes one. I'm not going to risk another one, with all the other choices out there.
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