Are you ready to use that G42 parts kit that you’ve been hanging onto for the past few years? Here you go! This uses DD43.1 rails along with a G43 magazine catch and spring (NOT 43X, 43!).

https://odysee.com/@SimpleStipple:b/G42_DD43.1_TEST:6

This frame was privately tested over the past two years by a few people from r/fosscad (RIP). My personal version of this frame is printed in Polymaker PC-PBT, and has survived several hundred rounds without a hitch. I highly recommend high-strength filaments for this frame, as it is quite small.