Luna Posted June 6 Share Posted June 6 I’ve got probably 7k rounds on my 1301 comp pro (mostly cheap federal top gun target loads) and when I was cleaning it recently, I noticed a large buildup of black fouling inside the piston housing on the underside of the barrel. A quick scrape with my fingernail tells me it’s plastic, not (just) carbon. It’s not causing reliability issues yet, is this something I should worry about? If so, what’s the proper way to clean the inside of the piston housing? Link to comment Share on other sites More sharing options...
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