Quote:
Originally Posted by Mr.Hitman
Nothing is damaged.
Yes I am, the SPR low gas block style.
Like I lock the nut as tight as I could, then wobble the barrel with the rail off, then I throw everything back together, and I give the barrel a bit of pressure to any side, then it starts to wobble...
EDIT: Tys, I never removed the stock rubber o-ring from the barrel... Do I need more? It's not damaged..
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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?