Forged upper lapping and qulaity perceptions tracking thread
#9
I'm rebuilding a grr with a mega upper. Looks like I need heat to get that Barrel in as well. Anyone try putting the Barrel in the freezer? we used to do that when I worked at a marina rebuilding powerheads.
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Forged upper lapping and qulaity perceptions tracking thread - by brut28481 - 01-27-2018, 12:47 AM

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