A man in Poland has built the world's largest working revolver, according to Guinness World Record. The weapon, a Remington model 1859, was built by Ryszard Tobys, of Piotrowo Drugie, west-central Poland. It took Mr Tobys around 2,500 hours to construct, since most of the parts had to be built by hand. The revolver, whose chamber holds six 136 gram bullets (4.8 ounces), shoots with great accuracy at a range of up to 50 meters.