I have both G43X (shorter G48) and Sig P365X on my CCW. In the summer I carry the Sig. Smaller and easier to conceal for me with summer close. Winter the G43X. I have a box full of holsters that do not work for either from the major brands to the gimmicky belly bands and Vanish. I must have ~20 or so.
I carry the Sig P365 more than the G43x and it conceals better and more comfortable for me. I'm 5'7" 195 so a short stocky dude.
I now only have two holsters for each that work amazingly for me.
- Stealthgear Ventcore 2.0 - Super comfy and holds the gun secure. I carry at 3:30
- Bravo Concealment - I know I know some will laugh, but I have both an IWB and OWB for each gun. Super simple and holds well.
Maybe get a G43(x) slide for you G48 and have the best of both worlds.