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Discussion Starter · #1 ·
I just started breaking in my XCR Light tonight, fired 60 rounds. I noticed after firing that the barrel seems slightly gray-ish, as in it seems to have changed coloration. Is this an issue I should be concerned with? This seems to be an amaturish question to me, but I have never noticed this with any issue M4s I have worked with.
 

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I ran a suppressor on my 16" bbl. and it discolored after a while. All the oil in the world wouldn't get it back to it's original color. I really don't care because my guns are tools and I run them hard. none of them are safe queens. ;D

MadDog
 
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