Magnum Research BFR

BFR
BFR in .45/70 Govt with custom grips
Type	Revolver
Place of origin	United States
Production history
Designer	Magnum Research
Manufacturer	Magnum Research
Unit cost	US$1,149
Specifications
Weight	3.6lb - 5.3lb (1633g - 2404g)
Length	11.75inches - 17.5inches (298.45mm - 444.5mm)
Barrel length	5.5inches (139.7mm) and 6.5inches (165mm) (Short cylinder only), 7.5inches (191mm), or 10inches (254mm)
Width	1.75inches (44mm)
Height	6inches (152mm)
Cartridge	Various see Available Cartridges
Action	Single action revolver
Feed system	5-round cylinder

The Magnum Research BFR is a single-action revolver manufactured by Magnum Research. It is made from stainless steel and is manufactured in a variety of heavy calibers, such as .500 S&W Magnum, including some traditional rifle cartridges, such as the .30-30 and .45-70/.450 Marlin. The name "BFR" officially is an acronym for "Big Frame Revolver", although other meanings, such as "Big Finest Revolver", or "Biggest, Finest Revolver" have also been used. It is also referenced informally by some people as the "Big Fucking Revolver".

The BFR comes in two basic models, one with a long cylinder for larger rifle cartridges, and one with a more traditional revolver cylinder length (called "short" by Magnum Research). Note that some models that use identical bores such as the .45/70 and .450 Marlin can be made with two cylinders for the same gun.

Magnum Research makes these guns in custom calibers and discourages the use of most rimless cartridges in their revolvers due to mechanical issues. The BFR can be customized for the .50 Beowulf cartridge. These revolvers were originally made by DMAX in Springfield, South Dakota until Magnum Research bought them out.