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Cleaning of Gas Tube

Discussion in 'Mossberg 930 Autoloader' started by mark.kottka, Oct 6, 2017.

  1. mark.kottka

    mark.kottka Copper BB

    Messages:
    1
    Hey you Krazy Kids. My 930 is having a bogger of a time w/ cycling; upon firing it will skip a cycle causing me to manually cycle. Does not matter what type of ammo since day one. The extractors look fine, thinking gas tube needs to be cleaned? Thoughts please. Thanks!


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  2. Whitey

    Whitey .270 WIN

    Messages:
    103
    Have you fully disassembled and thoroughly cleaned inside and out?
  3. threadedbarrel

    threadedbarrel Copper BB

    Messages:
    7
    I would clean the gas tube and the three parts of the piston, then do a general wipe down with your favorite cleaner/oilier.
  4. Rob72

    Rob72 .410

    Messages:
    39
    Soak your piston in a good penetrating oil (I use marvel Mystery Oil, from Wally World). You can use bristled pipe cleaners for the ports, but these are probably a more cost-effective solution: https://iosso.com/clean/products/ar-rifle-gas-tube-brush-refill-2-pack/ Same deal, dip the brush in oil, and scrub the ports. Once everything has been soaked & scrubbed, wipe off, and degrease with carb & choke cleaner. My experience is that the 930 works MUCH better using dry lube, with just a dab of grease on the receiver rails.

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