If nothing else works, you might try building up the inside of the trigger shoe with a little Bond-O or bedding material. Just a little and let it harden good before trying to fit it on the trigger. Will take some time and trial's.
Took about a year to get mine. Worth the wait
Fast shipping no run around with BK...lots of Tyler's on E bay but overpriced
I have been wanting Tyler T-grips for two revolvers that I own (M58 and M17). My mother decided to make them a Christmas present last year and ordered direct from them in the beginning of November. She paid by personal check (per their directions). The check was quickly cashed, and we are still waiting for either the grip adapters or any feedback whatsoever. My mother has made multiple attempts to contact them to no avail. She has been leaving messages since January.
My first department did not allow us to change the grips on our service revolvers and my issued Colt OP was too small for me. The local police supply carried the Tylers and it worked like a charm. Both my Colt Cobra & S&W Model 10 snub are set up that way.