I had a garbi heavily damaged in shipping by the USPS while being returned to from a gunsmith. I filed a claim for damages. The post office states that this item was classified as "nonmailable" and therefore refused to pay for repairs. They have cited 18 USC 1715, which states "Postal regulations prohibit mailing of certain types of items, including alcoholic beverages and certain firearms. Pistols, revolvers, and other firearms capable of being concealed on a person are nonmailable except when mailed between authorized dealers.." I don't believe a shotgun fits the above definition and I need to file an appeal. Can someone provide input on how best argue this matter? Are there any solid legal interpretations of this code out there?