I made a new one from steel
Well, that's an option, it's a simple pin with a milled cutout for the retaining pin. But I'm stuck on the why's of this, maybe there's something I don't know.
I have CNC produced 416 stainless triggers to replace the plastic triggers on Colt Mustangs, Mustang Plus II's, MK IV Government .380's and Sig P-238's. Video on installation in Sig;http://www.youtube.com/watch?v=Jh2v_-87DRM
Also I made up a hundred Llama .32 and .380 recoil spring buttons, checkered nicely and blued.