To illustrate my slight disillusionment with dealers allow me to recount a couple of explanations I've been given in person after making long trips to see enforcers and 4ts.
For an enforcer (in good condition but missing its numbered magazine, and no repeat no scope or rings (but with a 5e4) with a price of £1,500 (!) - asked what on earth the great long brass thing screwed into the fore stock was "It's the utility rail - they're on every enforcer." ( I might add that it required a cut of several (7+) inches being made into the said forend.
For a pretty rough enforcer with a numbered mag, dirty wood (not a massive problem) seemingly ok but very well used. Looked to me like it had been used for a target rifle by a club and with the rise of value they'd sourced a scope and rings. Anyway the reticule on the scope was upside down (post pointing towards the ground). Gunshop man said: "I've had loads of enforcers and they've all been the same it helps see the fall of shot better").
On asking about an 'l42' asked if it had the markings on the side of the receiver - no they'd been 'milled off' for the fitting of a new scope rail - but it definitely was an L42...
Getting a bit disillusioned with the whole thing to be honest and might buy a more modern remington 700 police or ssg 69 police. If the dealers are full of it then where can one look?