As they stand the new regulations will require you to have the gun brought up to the latest deactivation spec. when you sell it. For those of you in the States, we have 2 basic levels of deacts, pre Oct'95 and after, or new and old spec. Old spec guns are fully strippable and have fully moving parts, as they were the first guns done when ownership of live guns was banned they are also some of the most collectable and rare.New spec guns have some moving parts or are fully welded, but the magazines are removable .An example, an old spec Mk2 Sten is worth about £950 and a new spec £400 so you can see the difference.What these new guns wiil be worth is anybodies guess. I just don't see my Lewis gun as a terrorist's weapon of choice.