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m21

  1. Replacement Gas block for a Yugo?

    Yugoslavian
    Hey, I'm new to the forum, I have owned a Zastava M70AB2 under folder for about 2 years now. Im getting restless sitting there watching it do nothing, so I've swapped out some parts here and there, nothing major. I saw a picture of a Zastava M21 and the first thing I noticed was the gas block...
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