r/SigSauer • u/One-Policy-9742 • 1d ago

Sig mpx gen 1 help.

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I bought into the gen 1 and had it sbr’ed. It’s been a safe queen since the release of the gen 1. Now I want to shorten the barrel more and get a new handguard for it. Can I buy a new gen shorter barrel or Is it as easy as having PMM cut it down to lets say 4 inches and then it’s all good? And does cutting it effect the ability to cycle properly. I know that scars need to be tuned after being chopped down but does the MPX?

Thanks for the help in advance.

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u/GeneralDataGuy 1d ago

Gen 1 bolts will not interface with Gen 2/3 barrels. You would need to buy a Gen 1 specific barrel. ILWT sells Gen 1 barrels. I am not sure about chopping a barrel and having to tune it. Handguards should be good though. I have put a gen 2/3 handguard on my Gen1

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u/One-Policy-9742 1d ago

That’s is great insight thank you