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. Factory black fixed front sights and adjustable rear sights adorn the BFRs barrel.DetailsAction SA - Caliber .45 Long Colt .410 - Capacity 5 - Finish Stainless - Material Steel - Sights Installed Vent Rib - Barrel Length 7.5 - Overall Length 15 - Weight 4.5 lb - MRIs 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.