During my pilgrimage to the PNW, now and then I would see this girl at a range there. She always dressed similarly to the girl in the OP. Not quite as provocative but even so there was little left to the imagination. The skin tight outfit, tall boots and a hat. Long hair in a pony tail. She carried her gun in a thigh rig.
The girl was looking for attention and definitely got it. Most of the guys at this range looked like Cousin Eddie, so I'm not sure what she was fishing for. She had the runway walk down.
I must say she was reasonably proficient with her handgun.