SIGforum
Gen I MPX barrel in Gen II MPX

This topic can be found at:
https://sigforum.com/eve/forums/a/tpc/f/430601935/m/4490038974

February 20, 2021, 03:13 PM
dwd1985
Gen I MPX barrel in Gen II MPX
I understand Sig made Gen I and Gen II barrels but has anyone ever actually truer fitting a Gen I barrel to a Gen II or vice versa? I don’t understand why they wouldn’t be compatible. I have also heard you can use the Gen I barrel in a Gen II as long as you also swap the bolt, or something like that.