Pulse XT PistolCAD was always a bit scary to me. I have worked in architecture and engineering visualization for some time and it always looked really counter-intuitive and to be honest, boring to me.
I tried Fusion 360 on a whim. A friend of mine who started to work for a game company transitioned from Maya to Fusion and he created amazing stuff.
This opened my eyes that CAD software doesn't have to be only about architecture or machine parts.
The design for the pistol was created by Luca Xu.