This topic has been lying around a while, but if you are still interested. The rifle you are talking about is a Heckler and Koch 91 in civilian semi auto. The real rifle is a G3. On that movie they had a hk91 dressed up like a psg1, which is a 10,000 dollar or better rifle. As for the hk91, right now the market is drying up, your best bet is a gun show or a large gun store in a major city near you. Another option is the cetme, which seems to be in no short supply. It is the earlier spanish version of the hk. The germans made a few changes to that design, but many of the parts are interchangeable. The cheaper versions which are made from parts kits are called clones, DSA is a clone as well. The ptr-91 is the best clone out there. DSA rates near the bottom with hesse arms. These two are generally reguarded as junk because of quality control issues that are not sorted out before they leave the shop. However, this is not my oppinion, I don't know, never owned one. I have a federal arms hk91 personally and it has been great for me.
