This is the BA-K-47. According to the source, it is "a 1:1 scale AK-47 made out of bacon. It took a total of eight hours to create, a lot of bacon, and a blowtorch... oh yeah, and our good friend beer helped too."
Please note I have no idea what might be lurking on the rest of that site; I credit this to WarKitty, which has the world's best tagline ("Thermometer Goes Where?" beats out "Even Yankees Taste Good Deep Fried" from Motherhood Uncensored, though barely.)