I'm wanting to get an XM177 style flash hider for my 9mm AR. I want to pin and weld it to my 11" KAK industries barrel so I can have a 16" barrel and be able to put a butt stock on it. I've found plenty of 5.56 with the 1/2x28 thread pattern. But I need a 1/2x36 9mm flash hider. Anyone have any suggestions. Here's pretty much was like what I want to turn my upper into.
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