Glad you did not send money, yes it is a common scam I sort of guessed you were talking about another armslist gem from the beginning. Unfortunately wire fraud scammers now have caught on that some enfields are worth quite a bit of money, and therefore worth targeting people with. Basically any milsurp on armslist that is a rare variation is now a scam even if it seems to be priced appropriately, because they have caught on about suspicion over listings with insanely low prices.
AND, armslist won't even do anything about flagging the listings, much less the police. Personally it is very frustrating because we all collectively could hand the police every one of these scammers on a plate with a ready made case if they were willing to do the work or not require us to have sent our own money. Also, I doubt that any of these guys are up to only a few minor armslist scams which would make it even more satisfying and legally a slam dunk.
Unfortunately for all of us, basically everyone including the oldtimers has caught on to the prices of collectables even in out of the way places or hole in the shops that look they might not even have heard of the internet and knows what they are worth nowadays, so "they just might not know" is a lot more rare. Fortunately that might not extend to rare variations down to small markings or shops with attitudes about "those junky old enfields".
Seaforth, your database may now be the most useful tool for vetting these sales if they get past the reverse image auction search. like the above, if you see in your database that the SN is already in the hands of a collector who knows what they have there is no way they are going to let it go for fractions of pennies on the dollar to someone they don't even know.
There should almost be some sort of sticky about this for new collectors or those new to the forums of the American persuasion.