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Sig P226 Legion 9mm conversion question

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https://sigforum.com/eve/forums/a/tpc/f/430601935/m/2290095974

February 13, 2021, 04:55 PM
bdesign
Sig P226 Legion 9mm conversion question
Is it possible to convert a P226 legion from 9mm to .40 S&W?


Design Engineer
February 13, 2021, 05:15 PM
ah3
With a completely different slide, yes. Barrel swap only, no.
February 13, 2021, 11:05 PM
sjtill
Yes, my understanding from when I did a caliber change with a 229 using a Bar-sto barrel, you could convert .40 to 9 mm but not the other way round.


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February 13, 2021, 11:50 PM
Lefty Sig
9mm can fit a breech face sized for .40 and the extractor can usually function.

But .40 cannot fit a 9mm breech face.