Does anybody know if usp9 tac barrel (with an O-ring) will work on an standard usp9. HKparts said that you should remove the o-ring? I was hoping to keep the o-ring on it. The gun is manufactured in 2019.
Evidently finding a standard, stock USP9 barrel is a unicorn nowadays. Hell if I can find any in stock online.
Just looking for a regular, stock, full-size USP9 barrel.
I have a SilencerCo 1/2x28 Threaded Barrel I'd be willing to trade for it as well