Definitely agree I'd never bid on anything unless I'd viewed it in person first as majority of the guns they list look amazing in the pics but then when you view them in person you realise the photos are quite misleading.
I suspect its a mix of kind lighting and probably given a spray over with polish/ oily rag just before photos taken?
From attending their auctions over the past few years it's always been the same, when you view the guns you realise they're almost always a lot worse condition than they look in the pics.