Yes, the use of a C-clip as you describe is standard from the factory. I have manipulated the safety of my Mustang PocketLite many thousands of times, including in the course of firing ~1000 rounds through it, and the C-clip shows no wear at all.
I recommend a good pocket holster to reduce the collection of lint, et al.
Steve
I recommend a good pocket holster to reduce the collection of lint, et al.
Steve