Treating this as a valuation thread then (you will have to start a fresh thread if you wish to sell it ), seeing as how the shop in turn will have to sell it on, I think that is a very fair trade-in price indeed, as tops it is worth £200 if mint (and I mean mint) or if is just vgc £150 (have this week just bought a Sussex Armoury Jackal, complete with dummy mag for £150, so know this to be correct ). Hope this helps. Atb: G.