This new Magnum Research Biggest Finest Revolver BFR is model BFR4570B . It is chambered for the 4570 Gov round and has a stainless steel frame and a 5 shot cylinder , 10" barrel, Bisley white grips, and drilled top for optics. Insured shippng is $55.00 to the continental U.S. and no card fees added at Deals on Guns. Magnum Research website; BFR Revolver Long Cylinder, Stainless Steel BFR's are legal for sale in California pursuant to Sec. 12133 of SB15, except for .45LC/410. Factoids | Precision Center | Production MRI's Big Frame Revolver is truly the biggest, finest revolver on the market today. Entirely manufactured in the US and like the legendary Desert Eagle pistol it is designed as a magnum from the ground up. The BFR is all stainless and has a cut rifled barrel that delivers unmatched accuracy with lead or jacketed bullets. The BFR is the most powerful production single action gun made and with 12 calibers and two frame sizes to choose from you can take everything from grouse to grizzly. Choose your chambering and frame size and have your favorite gun dealer locate one of the BFRs for you.