Hard to say, not long ago (1-2 years) there were still some used ones being sold off for 350 area by an importer. On GB there is one listed at 750 but I doubt it will get any bids that high. Might watch it and see how the sale goes. You dont see many Gen1 on the market. m9a2 are going for 550, m9a1 450, gen 1 is kinda hard to guess I would say 300-400 would sell it without too much waiting, higher and you are waiting for the right buyer but it’s possible. Above 550-600 and I don’t think you will be able to sell it in the current market, but maybe during the elections.