Silver Bars carries an extensive range of silver bullion bars. Investors chose to buy silver bars because they have a relatively low margin over the spot silver price and can be easily stored. Silver bars are available in sizes from 1 Ounce to 100 Ounces. The most popular sized silver bars for investors are the 1 kilogram silver bar and the 100 ounce silver bar. sell silver bars from a range of suppliers, including Argor-Heraeus Silver bars, Heraeus Silver Bars, UBS Silver Bars, Credit Suisse Silver Bars, Valcambi SIlver Bars, and PAMP Fortuna, PAMP Lunar Series and PAMP Faith Series. All silver bars are a minimum fineness of 999. Silver bars are available for delivery or for vault storage in Switzerland, which is VAT-exempt.