The B&T-C1 should be compatible with the APC9, APC45, GHM9, and GHM45, it should also function with the Pro and K versions of these firearms.
Can’t see why it wouldn’t. Going to pull the trigger on it for my K Pro, and will report back. (Double pun intended)
Yes, it shouldn’t have any issues. I’ve installed standard aftermarket triggers into the K variant without issue, and the Franklin binary should be fine as well.