The serial number on a 3200 is OU #### If your number is OU.####, it supposedly has the updates. The allen head cap screws are in the lower left and right corners of the breech face. Since Remington quit doing the updates for no charge, the update procedure is very expensive and is probably best performed by Laib's Gunsmithing, because Remington may have quit doing it at all because they have liquidated their 3200 parts. A 25 1/2" field gun is not a popular item in the U.S. Most 3200s are sold for clay target guns and short barrels are very out of favor here for target guns. This is a great gun that may present a problem for you if you break a striker assembly. You would have to get Laib's to ship you one with instructions on how to install it. You can't conveniently fix a broken one yourself. 3200 owners here usually keep a pair on hand in case their gun goes out of action with a broken striker. On the other hand, it is a great gun. I once had a half a dozen assorted 3200s and now am down to my wife's gun, which is identical to yours, 25 1/2" field grade. Good luck.
