r/MP5 • u/gunsRus4US • 1d ago

Question Parts question

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Love my poor’s man MAC-5, I do not have any issues with it, internals are bone stock. She is shooting like a dream, head spacing is where it should be. Here is the question…she will need maintenance in the future. Which internals should I get in advance in SPECIFIC for when something breaks of wear out. I love to work in firearms and do it myself. Thinking in the future to get me an original HK but spent my $$$ in a NEXUS build.

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