Jim's Browning '74C series 9mm

[MisterSpock]

@"senona" empty your mag, reinsert it and seat it well, and let us know if the safety can be moved post WD-40 treatment.

And make sure you wrap the parts you don't want WD-40 on with a rag.

Anyone know how to get that surface rust off?  Just a brass brush and oil?

I've used just standard gun oil and a new toothbrush to clean off light surface rust on a couple 40 year old S&W's revolvers I bought a few years ago. 

It's slow and tedious, but obviously very finish safe. I'd start there, let it soak if it has too.