Browning BDM
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The Browning BDM is a
semi-automatic pistol A semi-automatic pistol (also called a self-loading pistol, autopistol, or autoloading pistol) is a repeating firearm, repeating handgun that automatically ejects and loads cartridge (firearms), cartridges in its chamber (firearms), chamber afte ...
designed and manufactured by the
Browning Arms Company Browning Arms Company (originally John Moses and Matthew Sandefur Browning Company) is an American marketer of firearms and fishing gear. The company was founded in Ogden, Utah, in 1878 by brothers John Moses Browning (1855–1926) and M ...
from 1991 until production ceased in 1998. Similar in appearance to Browning's (
FN Herstal , trading as FN Herstal and often referred to as Fabrique Nationale, or simply FN, is a leading firearms manufacturer based in Herstal, Belgium, and former vehicle manufacturer. It was the largest exporter of military small arms in Europe . FN ...
's P-35 model) " Hi-Power" pistol, the BDM was actually a new design created to compete in service trials for a proposal as a standard issue pistol for the Federal Bureau of Investigation (
FBI The Federal Bureau of Investigation (FBI) is the domestic Intelligence agency, intelligence and Security agency, security service of the United States and Federal law enforcement in the United States, its principal federal law enforcement ag ...
). However, the BDM failed to win any large scale law enforcement contracts, so was instead sold only in the retail market. Having a similar profile to the Browning P-35 Hi-Power, the BDM and its variants are often conflated as mere variants of the much older P-35 model, or other newer Browning or FN Herstal pistols that were updated variants of the P-35, such as the Hi-Power DAO model.


Design

The Browning model BDM and its variants were designed and developed exclusively by the Browning Arms Company attempting to address the trend within
North American North America is a continent in the Northern and Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the sou ...
law enforcement agencies of transitioning from the use of double-action service revolvers to higher-capacity semi-automatic service pistols. The design goal of the BDM pistol was to help experienced law enforcement personnel adjust from the trigger operation characteristics of double-action (DA) revolvers to double action/single action (DA/SA) or double-action-only (DAO) semi-automatic pistols. During the late 1980s and throughout the 1990s, Browning had several semi-automatic pistols in its catalog which were licensed to Browning but actually manufactured by European firearms companies, such as FN Herstal's P-35 Hi-Power model (Browning model "Hi-Power"), Sig Sauer's P220 model (Browning model "BDA .45 ACP"), and Beretta's Cheetah model (Browning model "BDA .380 ACP"). While these European pistol models had all found use in law enforcement and military units throughout the world, Browning was looking to compete with other pistol manufacturers in the North American market to develop an up-to-date, full-size, semi-automatic service
pistol A pistol is a type of handgun, characterised by a gun barrel, barrel with an integral chamber (firearms), chamber. The word "pistol" derives from the Middle French ''pistolet'' (), meaning a small gun or knife, and first appeared in the Englis ...
chambered in 9mm Parabellum and having a cartridge capacity of 15 or more rounds housed in box magazines. However, none of Browning's licensed models met these desired specifications, nor the design goal regarding helping operators smoothly transition from using revolvers to semi-automatic pistols. The Browning Hi-Power model (FN Herstal P-35) was the nearest design within Browning's catalog of the type of handgun that Browning engineers were seeking to develop. The Hi-Power model is a full-size, semi-automatic service pistol chambered in the 9mm Parabellum cartridge, and has a standard magazine capacity of 13 rounds. However, the Hi-Power design has been in service since 1935, and although it has a reputation for very high reliability and was considered to be rugged, in most configurations its service sights were considered small and ill-suited to low-light environments. Plus, the Hi-Power pistol model uses a single-action only (SAO) trigger operation, similar to the
Colt 1911 The Colt M1911 (also known as 1911, Colt 1911, Colt .45, or Colt Government in the case of Colt-produced models) is a single-action, recoil-operated, semi-automatic pistol chambered primarily for the .45 ACP cartridge. History Early hist ...
type pistol. Many policy makers in law enforcement regard single-action only handguns as an unacceptable risk and liability of unintentional discharge when a law enforcement official involved in a potentially lethal armed encounter suddenly experiences the almost inevitable adrenaline rush of anticipated or perceived danger. In such a situation, a single-action only trigger mechanism requiring a lighter finger pressure and shorter actuation is considered to lack sufficient inherent resistance to unintentional discharge for typical police use, requiring a higher level of trigger discipline than handguns with a longer and heavier trigger pull, such as double-action (DA) revolvers, which the vast majority of law-enforcement personnel of the 20th century had been trained to operate. There are relatively few law enforcement agencies that authorize the use of semi-automatic pistols with single-action only (SAO) triggers, due to belief that such pistols are better suited for military use or for operators with a higher level of training and expertise, such as SWAT and
hostage A hostage is a person seized by an abductor in order to compel another party, one which places a high value on the liberty, well-being and safety of the person seized—such as a relative, employer, law enforcement, or government—to act, o ...
rescue teams. During the 1990s, double-action/single action (DA/SA) and double-action-only (DAO) pistols were the types that the majority in law enforcement administration and procurement were looking to purchase and issue to their rank-and-file officers. Browning Arms Company decided to design, develop, and manufacture their own new pistol model, and any variants, solely in-house in the United States to meet law enforcement criteria of that time.


Operation

The BDM pistol is a magazine-fed, self-loading, hammer-firing type which was designed with a trigger "mode" switch installed on the left-hand side of the slide (actually only a flush inlaid disk with a bisecting groove), toggling between double-action/single-action (DA/SA) pistol mode, and the double-action-only (DAO) or "revolver" mode—though, of course, other than the similarity of the trigger mode, the BDM has no resemblance to revolvers. This mode switch is what gives the handgun its name, with BDM standing for "Browning Dual Mode" or "Browning Double Mode". The mode-selector disc could be turned using a tab protruding from the magazine base plate, obviating the need for tools in the field.


Variants

Variants of the BDM lacked the mode operating switch, and so were either full-time "revolver" mode, such as the model BRM-DAO (Browning Revolver Mode - Double Action Only), or full-time double-action/single-action pistol mode, model BPM-D (Browning Pistol Mode - Decocker). Finishes included blued, matte-chromed (which Browning advertising called "silver chrome"), and a two-toned combination of a silver chromed frame and blued slide, called the "practical" finish. The BDM and BPM-D variant have an ambidextrous frame-mounted safety/decocker lever, which when operated returns the pistol to the hammer-down, pre-cocked "safe" condition. Unless the hammer is manually pulled rearward into the cocked position, the usual first shot of a series requires only a relatively longer and heavier double-action trigger pull. Each subsequent cartridge can then be fired by a lighter, shorter single-action trigger pull, until the hammer is reset to the down and "safe" position by depressing the safety/decocker lever. The BRM-DAO variant lacks a safety/decocker lever, returning the hammer to the down and "safe" position after every shot fired. Operating the trigger of the BRM-DAO variant is the same as operating the double-action trigger pull (usually the first round fired of a series) of the BDM and BPM-D models. However, because the hammer of the BRM-DAO model automatically returns to the down and "safe" condition after every shot, the BRM-DAO is a full-time "double-action only" (DAO) pistol. All trigger pulls for the BRM-DAO are essentially consistent. The BDM and its variants utilize within the pistol's grip a removable box magazine, of the double-stack variety with a capacity of 10 or 15 rounds of
9×19mm Parabellum The 9×19mm Parabellum (also known as 9mm Luger, 9mm NATO or simply 9mm) is a Rim (firearms)#Rimless, rimless, Centerfire ammunition, centerfire, tapered cartridge (firearms), firearms cartridge. Originally designed by Austrian firearm designer ...
ammunition cartridges. To comply with the 1994 U.S.
Federal Assault Weapons Ban The Public Safety and Recreational Firearms Use Protection Act, popularly known as the Federal Assault Weapons Ban (AWB or FAWB), was subtitle A of title XI of the Violent Crime Control and Law Enforcement Act, Violent Crime Control and Law ...
, BDM magazines were limited to 10-round capacity after 1994 for civilian purchasers, although 15-round magazines were available for civilians before this legislation took effect, and 15-round magazines were always available from Browning during the production run for law enforcement users. After the 2004 expiration of the 1994 U.S. Assault Weapons legislation, 15-round magazines again became legal and available in most states for civilian use. Since the Browning BDM and its variants were discontinued, magazines for these pistols have become increasingly rare and expensive, even though magazines were fabricated for a few years from aftermarket firms such as Mec-Gar and Triple K. The Browning BDM, BPM-D, and BRM-DAO were noted for being among the narrowest full-sized 9×19mm pistols ever manufactured (even more narrow than the Browning or FN Herstal Hi-Power models) which made them easier to conceal and to operate by persons with smaller hands.


Manufacturing

While FN Herstal pistols were manufactured in Belgium, the Browning BDM and its variants were instead manufactured in Morgan, Utah, and officially sold only by retail firearms dealers through Browning authorized distributors in the United States and Canada. Markings on each of the Browning BDM pistol's slides list Morgan, Utah and Montreal P.Q. (Province de Quebec), because in these cities were located the headquarters offices of Browning Arms Company for each respective country during the production run of the BDM model and its variants. Although Browning initially offered the BDM and variants to law enforcement agencies, the BDM design failed to win any large government contracts, so the company instead advertised and released the BDM pistols for sale in the civilian retail market beginning in 1991.


See also

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List of semi-automatic pistols A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, but ...


References

{{DEFAULTSORT:Browning Bdm 9mm Parabellum semi-automatic pistols Semi-automatic pistols of the United States