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Posted: 3/21/2017 11:51:06 PM EDT
Ok,

So I found this little sucker floating around in the quad rail... Not sure if it is part of the barrel nut-  Barrel is still rock solid, so I think it is part of the shroud... Just making sure that it is not part of my barrel assembly that is gonna cause serious problems!





Thanks!
Link Posted: 3/22/2017 9:27:05 AM EDT
[#1]
It is part of the shroud. It's not necessary buy it fills the gap around the barrel on the back end.
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