I only have one. It has seen very little use and about 60rds of fired with it attached. Basically in exactly the shape I bought it in. And the price now $50 lower than I originally paid for it (when these were cheaper than they are now) too.
These are the best collapsible stocks on the market, no one else has the large surface with the right cheek weld. A great stock to put on a CQBR or Navy SEAL SPR build.
$500 shipped UPS insured
Oh and if you want a Vltor Tube and DPMS hardware (latch plate and castle nut) I can include them for $45.
These are very rare, and a collectors item, there are approx 40-60 of these in civilian circulation as far as I know
(There will probably never be any more genuine Crane stocks on the market.)
By the way if you really want to know exactly how many are in circulation I would contact Troy Ind. They were probably the other original source for these. ARMS sold 40 and they were the largest and maybe the only source, so if Troy didn't buy from ARMS their total sales added to 40 should be the number.