The Magnum Research BFR is a family of heavy duty five-shot revolvers chambered in a wide variety of calibers. These all stainless steel revolvers are available with a standard sized cylinder or a longer version with rifled barrels ranging from 5.5" up to 10" in length. This particular model is chambered in 475 Linebaugh/480 Ruger and has a 7.5" barrel and 5 round capacity.