All, Please help me out here. Here is the scenario. A friend of mine is an Army officer who just rotated back from Iraq. Prior to deployment, Winchester "loaned" his unit 5 new combat shotguns for use and soldier feedback on performance. These shotguns are the Model 870 MCS complete with 18", 14", and 10" barrels. This weapon system allows the soldier to configure the weapon based on the mission. When my friend's unit returned from Iraq, Winchester did not want the weapons back and since they were not on the units property book or MTOE, the Army had no use for them. Essentially, the weapons were in limbo. Winchester sold the 5 weapons to the officers for $500 each. I do not think there is a "papertrail". Here is my question. How does one legally register this weapon? Is it AOW for $5 stamp or SBS for $200? Any advice would be appreciated. He absolutely wants to do it "the right way".