C&G are a "strange operation" and I wonder how come they manage to find all numbers matching Nose-piece, sights, barrel, action and bolt that are all unused / unfired and original.
I am doubting that all of these parts have sat in stores "together", unissued and unused - stores dont work like that.
Maybe the matching numbers is just a recent thing ?
They have in past sold a number of Enforcers which did not exist before they had them for sale, and on close scrutiny were actually built up No4's.
Edit to add link
http://www.cgfirearms.co.uk/(S(3znuy...)/Default.aspx