I ordered 3 smooth triggers with trigger bar from Midway USA, (Glock # SP00357) to replace the serrated triggers in my 3rd gen 27 and 19 & 23 RTF2's.
No problem to swap out, but I did notice a slight difference how the tab where the spring hooks was shaped differently, (see photo's).
The trigger on the left came out of my 23 and the tab where the spring connects and is shaped like all 3 of the new triggers, (slight bend where the spring hole is).
The trigger on the right has a straight tab where the spring connects. This is how the factory trigger bars were shaped in the 19 & 27. I took the factory smooth trigger assy out of my 22 RTF2 and it has the straight bar also.
The replacement smooth triggers fit all 3 guns and function as they should.
Just curious if anyone else has noticed or experienced this?