Quote:
Originally Posted by spartan117
What brand of mk18 rail are you using? I had one from huang and i had the same problem. After testing it on different metal bodies i concluded that it was the barrel nut's dimensions were off. The barrel nut would tighten all the way but when the rail was on, the force applied on the rail by picking it up was enough for the barrel nut to "slide" loose. I say slide because the nut doesn't actually rotate loose its just that the nut is a bit larger than the threads on the upper and it can just come loose when you wiggle the nut. I fixed the problem by switching to socom gear mk18 rail. From what i hear the barrel nut for the socom hear has the same threading as real steel Ar's. Did you try installing the original delta ring that came with your gun?
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Yes, mine is Huangs..
Installing the original delta ring with the DD rail? That wouldn't fit...