That could very well be. Well after work Ill probably get to fiddling around with the dang thing. That and trying to get the barrel nut to stop undoing itself! That is the thing that is driving me nuts..
I picked up a "Socom Gear" DD Mk18 RIS, and when I fitted it I had two problems.
A: The O-ring around the barrel kept getting chewed up by the barrel nut and having to be replaced.
B: After fitting it, and after a couple mags the barrel nut would loosen up enough to make the outer barrel move very much freely..
Oh, and trust me.. I have tried thread lock..
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