Anyone with details on the California legal Mac-10 pistol? I understand Masterpiece Arms may make one. They come with a 10 round mag, but I sold as a single fire. You the owener need to take it apart and remove the block to allow the use of the 10 rnd mag.
Are these things junk, or do they actually run without jamming?
Are these things junk, or do they actually run without jamming?

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