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Boo Boo on M4 Barrel

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Got a safe ding on my M4 barrel. What do you guys use for touch up short of refinish, hanks.


Leave it as is. But that's just me. You want it pristine, put it in a foam-filled pellican case, lock it in the safe and never take it out. :D

I have been known to have one of these on my work bench. It's adequate. https://www.brownells.com/gunsmith-tools-supplies/metal-prep-coloring/metal-bluing/touch-up-pens/presto-gun-blue-pen-prod24775.aspx

Edited by truckcop
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