I recommend looking at some of the other characters, so you can see more or less what we're going for.
@BurningDaisies
@BurningDaisies
@byteoflogic Huh. Well, not to be rude, which I know I'm going to probably end up being anyway, so I pre-emptively apologize, but a slight change of focus might actually not be so bad. Her whole "reinforces body with dangerous amounts of magical energy to perform increased physical feats at the price of possibly sustaining damage" is already really similar to Aegis' abilities, especially since they both have boots as a focus.
If you switched out her focus to "magic guns" then you could still have a similar fighting style just by doing things differently. Namely, pull a Ruby Rose and send yourself flying all over the place with the recoil of firing magically-empowered guns, while also pulling functionally infinite firearms out of nowhere to keep going. Plus, a Magical Girl's transformation and armaments are based on the user's personality, so there's really no rule that says that your aesthetic has to be all cute and girly. They could easily look like normal firearms.
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Magical guns are a perfectly acceptable aesthetic.
Adapt the idea to archery? Though traditional bows are huge.