Besides I don't think that's true. I believe the same legislation that applies to vehicles would apply here. Cannot deny warranty work for aftermarket parts.

Well, if the original objective is just to reduce noise in an HD/SD SHTF scenario, I think all these aftermarket manipulations are most likely not worth the trouble/expense. I may as well buy a couple extra pairs of "ears" (3M "Airport Style") and train on how to don them quickly while in bed, for example. That said, if I were to go ahead with the aftermarket barrel, in the case of my RIA 1911, I'd wait for the warranty to expire first and then do it. Until then, I'd buy a new "blowback" weapon that comes with threaded barrel.




I'd be a tad concerned that they'd find various wear & tear "micro" evidence that would indicate use of the replacement barrel, thus voiding the warranty.