As far as I know, the only Pistols that have both Curved and Straight Grips available are the 59xx and 4006/4046 which share the same Grip size.

69xx and 401xTSW/405xTSW only have curved grips
391x/395x only have straight grips

3904/3906 only have curved grips

401x/405x (nonTSW) only have straight grips and do not interchange with 401x/405x TSW models.

Hopefully, someone more knowledgeable will confirm or correct above - and maybe someone can even provide a list of which Pistols have common Grip geometry.


Thanks, Ed