Literally zero, knowing almost nothing about it but one picture, which says terrible paint job, cheapo red-dot and somebody who knows nothing about airsoft weapons trying to sell it
Deffo nowhere near the £450 you have it advertised for ????
£400 brand new for the gun, so he's rather optimistically thinking 2 extra mags and a mystery-quality red dot make up for it being an over-priced second hand gnu.
But I think we've seen worse here, haven't we?