Perhaps Power Custom
I find their website too fussy and hard to navigate but.....
They make a modified OM trigger that allows a NM gripframe to be fitted to an OM. I was considering building a 3 screw Flat Top Bisley 357 and did some research on the subject.
Complete thread:
- Stainless ROA gripframe options? -
Josh Maloley,
2014-12-21, 18:09
- Stainless ROA gripframe options? - uncowboy, 2014-12-21, 18:36
- Perhaps Power Custom - Andrew, 2014-12-22, 18:53
- brass grip frames here: -
cable,
2014-12-22, 21:57
- and here: - cable, 2014-12-22, 22:00