Old colts, but I d ont' think new ones??? have larger trigger pins on purpose.

And there are not enough of them, IE no demand, to have all makers make replacement triggers with both pin sizes..

Heck its been so many years.. I don't even recall the two sizes. .154 comes to mind as one... I may be way off.

Now days most all lowers are more than good enough that you don't need a brand name...

YMMV

And now I see who asked the question.. LOL...

We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....