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Thread: Barrel nut help
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31 August 2016, 17:23 #31Contributing Member
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31 August 2016, 17:28 #32
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7 September 2016, 14:11 #33Member
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I see pictures of SMOS rails that are not flush with the receiver, there is some empty space between the two. It can be to an SMOS upper or otherwise. I dont see it in all builds, but enough to be a concern to an ocd person. Is this something that I should expect if I purchase a GFY rail? Picture below shows white space im talking about.
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7 September 2016, 15:26 #34
^^^Perhaps a result of shims being used to properly time the nut?
That'd be my guess.-One Nation, Under God
-"The bad news is time flies. The good news is you're the pilot." ~ Michael Althsuler
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7 September 2016, 16:06 #35
The "gap" is always going to be a possible issue with timed barrel nuts and shims.
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7 September 2016, 16:28 #36Member
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I dont think ive ever seen a Noveske NSR with this issue and its almost the same design. With that being said I think the SMOS GFY looks better then the Noveske Mlok. From the options posted in reply #10 of this thread. There is no mention of shaving down the barrel nut to get it to grab closer to the receiver. Or is this a no no. Most likely I will have a gunsmith put my upper together as I dont have some tools to complete the process. Just thinking ahead in case I have to live with the gap. Maybe ill think about it like a thigh gap and all we be well.
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7 September 2016, 17:10 #37
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7 September 2016, 17:20 #38
I have gaps on mine and I haven't used a shim yet. I think it's that way by design. I'm curious if someone has a pic of it NOT having a small gap. I'm OCD and the gap doesn't bother me.
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7 September 2016, 17:35 #39
The barrel nut bottoms on the barrel extension, not the receiver. If you have the capacity to clearance the shoulder inside the barrel nut, you also very likely have the intelligence to figure out it is the worst solution possible when you can remove material from the exposed face of the receiver with 1/10 of the effort. For that matter it would even be easier to remove a few hundredths off the barrel extension flange than the inside face of the nut.
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7 September 2016, 19:02 #40Member
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I'll just leave it to the pros once I get to that point. I am outside of my scope of knowledge and experience
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20 September 2016, 17:40 #41Senior Member
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By the way...Like I said, a shim was used on mine.
No Gap!
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21 September 2016, 02:51 #42Senior Member
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Just a question, since you're here...would you mind sharing where you get your aluminum from, SMOS? Mainly, which country sourcers/certs it?