Hard to say, because there are so many makers now.
Bar-Sto makes good stuff, and I got a "semi drop-in" from them a few years ago for my Commander in .38 Super, but still decided to send it back to them with the slide for a better fit than I thought I could do myself.
I later bought a 9mm barrel from a small maker for the same pistol and it did drop right in.
I would expect Colt parts to pretty easily drop in to a Colt gun.
__________________
The United States Marine Corps: Providing the enemies of America the opportunity to die for their countries since 1775. Semper fi.
|