I received a box of 12 Bren mags from Interordnance yesterday.
The box is rusty and beat and the mags are all used, very dirty condition, with finish wear, but all seem to be serviceable with no dents. I consider $50 a fair price for these.
I also had rolled the dice and ordered a Mk 1 barrel and they sent me a smoothbore Mk 2 barrel. The customer service lady had no idea what I was trying to complain about, but she was pleasant and has arranged to ship an actual Mk 1 barrel next week.