I believe and Greg can confirm or deny since I know he's been there. There's an old style and a new style trigger bar and spring.
It's shaped a little differently. I don't believe the old style is still available but I think it can be upgraded to the new style.
The new style spring is not compatible with the old style trigger bar. Probably really not an issue unless the it breaks.
Sure wish I could checker metal, I've often thought about trying to do it, just haven't built up my courage enough to try it even on a cut off grip frame.
Maybe one of these days if there are enough days.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."