3D-printed derringer discovered in carry-on bag by the TSA team at the Reno–Tahoe International Airport (RNO). It was assembled with parts made from a 3D printer. While it was a realistic replica, it was loaded with live ammunition. While firearms are permitted in checked baggage, the TSA strongly suggest making oneself familiar with local laws prior to flying with a printed firearm.
U.S. Transportation Security Administration
<a rel="nofollow" class="external text" href="https://www.tsa.gov/sites/default/files/styles/blog_imported/public/blogger-images/post-705994580943688491-rno.jpg">TSA.gov, an official website of the Department of Homeland Security</a>