[Hectic]

Some folks go all out and strip em down others just paint em whole.
On a gbb id suggest taping over openings and such. Aegs dont really have openings to stuff that can stick together. For a stripped down gun tape up openings to avoid getting paint on the inside to avoid fitment issues. Gbb or aeg stuff can get tight inside with even a half mm of paint.
Mostly id say of yer gonna do it do it right but for a good camo pattern its better if you can keep the parts together or layed out closely to how they will be assembled so all the pattern lines up. Im a lil OCD tho lol.