Hey!
Normally I would post in the thread, but my phone isn't loading it properly so I'll just post here :/ Anyways, yeah, your gun should be fine, and by magictech, I'm assuming you mean you are putting some sort fantasy-esque design to the gun (correct me if I'm wrong I don't know what you meant by magictech lol).
And about your character: we are still in the prison lol, so your character will meet up with us there. So really, you don't need to change much haha, seeing as how we are not really out of the prisoner yet :/