As mentioned the I-12 has the shims and gel-insert recoil pad. The I-12 is also more ergonomic regarding overall appearance and design, especially the stock and forearm. The I-12 is made in Italy and the 2000 is made in Turkey. Both shotguns are manufactured pretty much the same way in modern state of art plants. The bottom line in my mind is these shotguns are the same firearm when you take a closer look at both models operationally inside. Gun Test magazine actually found the 2000 to be more reliable when testing both these inertia driven semi auto models head to head. I suppose the I-12 Gun Test received from Franchi USA was a lemon. I also subscribe to the thinking that all manufactures build a bad one on occasion... Especially when considering semi autos these days are pretty much cookie cutter mass produced in the first place. For my money I went with the 2000... This shotgun has been a very reliable shooter. Fortunately for me the Stoeger 2000 stock dimensions fit my body frame really well. The I-12 overall modern design looks, shims and changeable factory gel recoil pad features I was not willing to pay a couple extra hundred for. The 2000 also weights less and is better handling for carrying upland bird hunting in my opinion, which was the deciding factor for me when choosing between these 2 shotguns. I would also like to handle and shoot a Franchi I-12 Upland Hunter sometime to see how it stacks up against the much more exspensive Benelli Ultra Light.
Here are the manufactures sites for both shotguns:
Franchi, Italyhttp://www.franchi.com/index.asp?Lan=ENFranch I-12 ID System Designhttp://www.franchi.com/Tecnology/index.asp?ID=706Stoeger, Turkeyhttp://www.vursan.com.tr/index_en.htmStoeger 2000 ID System Designhttp://www.stoegerindustries.com/inform ... system.phpBest of luck and have fun shotgun shopping!