GDK the seller? they have been selling gun cabinets for years . tempted to get one myself .
If its got the BS standard then I can't see much wrong with them. . They will be built to the same standard as Brattonsound I would guess . They are just metal boxes with two locks on them after all.
If I remember right the gun safe only has to deter a thief and keep him out for a certain time limit as I have read countless time on here .