H&R doesn't offer the 270 in the Ultra any more, so it could be an old version, or someone has swapped stocks, or a special edition if it has a resin lam stock or it could also be a laminated pallet wood stock which is just a regular Handi. If it's a resin laminated stock as comes on the Ultras, that price is comparable to a new one, if it's just a Handi, it's over priced, new ones sell for about $220-$230. If it has a serial number prefix of NN or HN or later(the second letter denotes year of mfr as shown in the FAQs), I'd consider it if it's the resin lam stock, but if it's an NM or HM or earlier, don't, it can't be fitted with any high pressure barrels, even another 270 barrel, it has a weaker frame than late model H&Rs.
Tim