I am on all of the gun sites, and I have read NUMEROUS complaints about Gunbroker. Many people have made posts stating they got ripped off or sent a shoddy gun in terrible condition. Apparently, when people leave negative feedback on these vendors, the feedback routinely gets deleted, and the complainer had his account cancelled.
Word is that gunbroker must be in collusion with these vendors in order to keep the servie going w/ the bigger vendors. At least that is what the people who have claimed they got ripped out have speculated.
I've seen probably 10-12 people post the same complaint/scenario as the one above.
I would not deal w/ them, personally. If this is occurring, then you cannot trust the entire feedback system there.