You don't want to cut and and thread the barrel? I was going to order a tacsol pac lite upper for my 22/45 mark 3. But I will be cheaper to thread the barrel
I ordered a TacSol Pac-lite 4.5” upper and a mkiii 22/45 grip assembly. Made a separate pistol. It needed the bolt assembly purchased separately. I can say that the Pac-lite receiver near perfectly matches the Tbac takedown 22 I paired it with, perfect OD match.