Adding a weapon into my 3rd person shooter?

Hey all,
So, my group and I are making a 3rd person shooter. We are using a pre-made drone as a main character. I have the weapons split off of that drone but i dont know how to import them into unreal and have it be recognized as a weapon and able to fire. Is there any tutorials I can watch to help? My model is the drone 166 from the movie Oblivion. Any help for my class project would be helpful!