JTL-E .500 S&W Magnum 12" is a German 5-shot double-action revolver chambered for the .500 S&W Magnum cartridge, developed by Janz-Präzisionstechnik GmbH. The revolver has a 12-inch (30 cm) barrel with no muzzle brake or ports. It is able to fire even the heaviest .500 S&W Magnum bullets weighing 725 grains. It has a clockwise cylinder rotation with a tight barrel-cylinder gap of less than 0.10 mm. The interior and exterior are made of a hardened stainless steel. The cylinder steel contains a high percentage of chrome. The frame is made of a chrome-manganese steel. The cold hammer forged barrel is made of a chrome-molybdenum-manganese steel. The revolver comes with a Nill grips, screwed together and magnetically secured with gold plated discs. It has a highly polished finish, a titanium nitride coating and a gold plating on the hammer and the trigger. External links Janz Revolver Janz Revolver USA Revolvers 12.7 mm firearms .50 caliber handguns