The HM-3 is a

submachine gun A submachine gun (SMG) is a magazine-fed, automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an autom ...

of Mexican origin chambered in the 9mm calibre and, since 2011, in

.380 ACP The .380 ACP (9×17mm) ( Automatic Colt Pistol) is a rimless, straight-walled pistol cartridge developed by firearms designer John Moses Browning. The cartridge headspaces on the mouth of the case.Wilson, R. K. ''Textbook of Automatic Pisto ...

caliber for private security forces, from a magazine fed from the grip, much like the

Uzi The Uzi (; he, עוזי, Ūzi; officially cased as UZI) is a family of Israeli open-bolt, blowback-operated submachine guns and machine pistols first designed by Major Uziel "Uzi" Gal in the late 1940s, shortly after the establishment of the ...

. This sub-machine gun is manufactured by Productos Mendoza, S.A. in Mexico. It is a lightweight weapon of reduced overall length achieved by largely extending the wrap around bolt forward around the barrel. A grip safety is provided to prevent

accidental discharge An unintentional discharge is the event of a firearm discharging (firing) at a time not intended by the user. An unintended discharge may be produced by an incompatibility between firearm design and usage, such as the phenomenon of cooking off a ...

. The stock is designed in a manner that makes folding and unfolding easy and provides a foregrip when the stock is folded. The selector lever is on the right-hand side of the weapon so that it can be operated by the right hand without releasing the weapon with either hand. The stock can be folded or unfolded while gripping the weapon with both hands unlike the previous models of the same gun. It is much like the UZI in the way that the magazine is located on the grip.

Variants

9mm caliber models

There are currently three variations on the HM-3 using a

9mm caliber This is a list of firearm cartridges that have bullets in the to caliber range. *''Case length'' refers to the round case length. *''OAL'' refers to the overall length of the loaded round. All measurements are given in millimeters, followed ...

round. The HM-3-S LONG is a 15.74 in (23.85 in with extended stock) long model, used primarily for the Mexican Police and other State and Municipal security forces. The HM-3-S SHORT is almost identical, with the exception that the barrel is shortened and therefore measures only 12.99 in (21.06 in with extended stock). The HM-3-S BULLDOG (also called HM-3-S Mini) is a miniature version of the weapon, especially designed to be carried by motorcycle police and bodyguards, and measures only 10.8 in (19.3 in with extended stock) in length and weighs 2,827 g (6.2 lbs) with a full 32-round magazine. All versions may use 20 or 32-round magazines.Productos Mendoza HM-3-S catalog, 2012

.380 caliber models

Since 2011,

Productos Mendoza Productos Mendoza, S.A., is a manufacturer of both air guns and conventional firearms, based in Mexico. It was founded in 1911 by Rafael Mendoza Blanco. Initially, Productos Mendoza manufactured firearms for troops under General Francisco Villa d ...

has manufactured a variation of the HM-3-S that shoots a

caliber round. This is the largest caliber available to use by

private security companies A private security company (PSC) is a business entity which provides armed or unarmed security services and expertise to clients in the private or public sectors. Overview Private security companies are defined by the U.S. Bureau of Labor Sta ...

and individuals in Mexico, and the most popular caliber for personal defence in Latin America. The HM-3-S LONG model is called "COBRA .380" and the HM-3-S BULLDOG is called "BULLDOG .380". These names were created to facilitate the models' introduction to the consumer market. All specs are the same (excluding caliber) than the HM-3-S 9mm models, with the exception that .380 models can carry a 35-round magazine.

Specs

References

External links