Firearm legalities

[Binnie]

was just having ponder really

Is there any part of a firearm the is more illegal to have than others?

i know ammo would be, but say if i owned the frame of a pistol, and someone else in my group owned the barrel, someone else owned the slide etc etc, would this attract big penalties?

what i'm trying to get at is, i know it's illegal to own a firearm, but if i had a component of one in my posession, would i be treated the same should the plod find it?



Note to Mi5/Mi6/govt/police secret squirrels........ i'm posing this as a hypothetical question, i do not own, or intend to own a firearm or firearm components, now go after some real criminals.........