hi andy i sold a left handed one on here in vgc and in original condition with the original sling and silencer a while back for £200+post and the left handed ones are about as rare as hens teeth so as you say yours is in mint condition but it has had a re-furb i would still think that it should be around the £180 mark may be a bit more and if it was a .177 it would be a bit more regards stuart