Check out Military.com's latest "Behind the Barrel" video, hosted by Craig Gottlieb of History Channel's "Pawn Stars," about the iconic MP 40 submachine gun.
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![President Barack Obama awards retired Marine Cpl. William "Kyle" Carpenter, the Medal of Honor for conspicuous gallantry](http://images01.military.com/sites/default/files/styles/thumbnail_large/public/2025-08/ApNewsroom_Obama.JPEG.jpg?itok=UKIqEhsJ "President Barack Obama awards retired Marine Cpl. William "Kyle" Carpenter, the Medal of Honor for conspicuous gallantry, Thursday, June 19, 2014, during a ceremony in the East Room of the White House in Washington. (AP Photo/Jacquelyn Martin)")