There's a very small number of companies that have made a very small selection of their product lines in female specific fits, but you're talking tiny numbers compared to male/generic fit uniforms. Overall, I'm fairly certain that an ACU style ATACS-FG set in a female cut does not exist.
I'm pretty sure Sacarathe is right and that MASSIF has done some female-specific stuff, but I've never seen anything from them in any ATACS. I've definitely seen some 5.11 stuff for females, possibly Tru-Spec/Propper too but it;s not something I've really looked in to; the proportion of women in the military/LE (and airsoft is probably even worse off in that regard) just doesn't work financially in terms of apparel manufacturers designing and producing kit for women.
If you specifically want ATACS-FG it's just gonna be a case of taking time with measurements to get the closest thing possible. If you search for female/women's cut on eBay you might get a few results in UCP, Multicam and (primarily) plain colours. Again 5.11 would be the brand that I've seen the most of in terms of female specific tactical apparel.