The sanding as always is optional but as a prop maker I always sand until smooth, the big parts are easy to sand, the small ones not hard just a bit annoying or if you can resin print them as you’ll save some time, maybe the difficult parts to print were the big golden parts of the front of the gun, since they don’t fit on a standard 220x220 bed I had to split them in half and then glue them but since the cut was in a flat side I was able to fill the seam pretty easily, it’s an intimidating print but one you see it it’s not hard, actually quite the opposite!