Md bill -- "shall issue" for women
25 Maryland delegates have cosponsored a bill to establish shall issue for women, while retaining may issue for men.
It's an interesting approach. Generally, gender discrimination is subject (if I remember correctly) to some level of review greater than rational basis and less than strict scrutiny. I suspect it wouldn't be hard to find data establishing that women are victims of violent crime more often than are men, in proportion to the population of each. (They're also less likely to be perpetrators, but that's not so relevant to the bill since the screening process is the same for both genders -- it just provides that men must prove a need for self defense, whereas women need only show they want it for self defense).
(Hat tip to reader Adrian, who spotted the bill)