Which one? The original was a Greek import, first marked SAR-3. This was a preban. Then, there were the transitional guns that were marked SAR-3, but had the "3" overstamped with an "8". Depending on when they left the factory, and if they had Springfield's "accurizing" kit, they may also be considered preban. Next there were the postban SAR-8's, which were still the Greek imports. These stopped coming in in 96, I believe. Around 98-99 Springfield started selling a gun called the SAR-8 again, but despite having the same name, it was not the same gun. The new one used an aluminum receiver with a built in scope rail that was manufactured/sold by Federal Arms Corp.
Any of the Greek imports are excellent guns - among the best of the clones as they were actually contract guns built on HK machinery. The value can vary depending on if it can be considered preban or not, with the SAR-3's sometimes going for nearly as much as a real HK-91, to the point where you may as well save up a few extra hundred $$$ and go with the real thing.
I'd stay away from the newer ones with the aluminum receivers. IMHO, they look funny, and some question the long term durability of an aluminum receiver. They usually aren't much cheaper than the greek SAR-8's or portegese FMP imports, both of which are much more desireable. Parts kit guns built on FMP receivers can be found for around the same price and are also more desirable.
One thing the Springfield guns have going for them is the lifetime warranty. However, Springfield is/has run out of many parts to do repairs. I have heard that in the event of an unrepairable firearm, however, they will credit you the value of it towards an item they currently offer.
Rocko
Rocko