Aircraft / Aviation Vehicles & Artillery Infantry Arms Warships & Submarines Military Pay Chart (2023) Military Ranks

Infantry Small Arms / The Warfighter

Kbkm wz. 2003

Light Machine Gun (LMG) Prototype [ 2003 ]

The Kbkm wz.2003 tried, unsuccessfully, to self its virtues to the Polish Army - the service electing to go with the competing UKM-2000 series instead.

Authored By: Staff Writer | Last Edited: 05/12/2021 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

When the Polish Army modernized to NATO standards and adopted the Kbs wz. 96 / FB "Beryl" assault rifle of 5.56x45mm NATO chambering in 1997, thought was given to developing a true, belt-fed, gas-operated Light Machine Gun (LMG) form to operate alongside it. The work resulted in the Kbkm wz. 2003 which attempted to succeed the long-running, Soviet-era PKM machine guns in 7.62x54mm chambering then in widespread Polish Army service.

The weapon featured the tried-and-true gas-operated, rotating bolt action common to many automatic weapons today. Feeding was by way of a 200-round disintegrating-link belt (held in a hard pouch) but the system could equally feed from 20- and 30-round Kbs wz. 96 detachable magazines as well. Chambered for the ubiquitous 5.56x45mm NATO intermediate rifle cartridge, the weapon's internal workings could manage a rate-of-fire of 650 to 1,000 rounds-per-minute. Weight reached 7.5kg and overall length was 1,099mm. The barrel assembly measured 500mm long.

Its outward design was conventional and dominated by its large rectangular receiver frame. The barrel was fitted over the gas cylinder which was used to control rate-of-fire. The muzzle was slotted and iron sights fitted over the gun. A collapsible bipod could be added to the gas cylinder for support. The aft-end of the weapon was traditional with a full shoulder stock, angled pistol grip, and charging handle to manage the function of the machine gun. Belt ammunition was loaded through side ports as the original design carried a dual-feeding capability. A carrying handle over the receiver facilitated transport of the weapon.

Two versions of the gun were developed: the Kbkm wz. 2003D and the wz.2003S. The D-model was the standard, fixed shoulder stock, full-length form while the S-model was intended for airborne troops and thus given a folding skeletal stock with shortened barrel and gas cylinder - making transport that much easier for these lightly-equipped troops.

Work on the design was disrupted in November of 2000 with the end of its original developer - Zaklady Metalowe Lucznik SA. With the establishment of Fabryka Broni Lucznik-Radom SP in April of 2001, work resume and, at this time, the opportunity was taken to simplify certain aspects of the machine gun - as such the dual-feeding quality was ultimately dropped and the trigger group was revised. Work lasted into 2003 by which point the gun was being readied for state-level testing. However, Polish authorities did not suggest adoption of the gun into the Army inventory, marking the end of its development.

In the end, the weapon's design existed only in prototype form for its part in history and little else came from the project - the Polish Army instead electing to adopt the "UKM-2000" - ironically enough this was local development of the Soviet-era PK/PKS machine gun in 7.62mm chambering (specifically 7.62x51mm NATO).©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.


Service Year

Poland national flag graphic


Light Machine Gun (LMG) Prototype

Zaklady Mechaniczne Tarnow - Poland
(View other Arms-Related Manufacturers)
National flag of Poland Poland (trialed, not adopted)
(OPERATORS list includes past, present, and future operators when applicable)
Fire Support
Capable of suppressing enemy elements at range through direct or in-direct fire.

Overall Length
1,099 mm
43.27 in
Barrel Length
500 mm
19.69 in
Empty Wgt
16.60 lb
7.53 kg

Iron; Supported Optics.


Gas-Operated; Rotating Bolt; Belt-Fed; Full-Automatic

Rounds are automatically ejected from the breech, a new cartridge stripped from the feed and set in the chamber, and rounds are continuously fired so long as the trigger is pulled and an ammunition supply exists.
Rotating Bolt
System utilizes internal mechanism to lock the breech or rear barrel assembly prior to firing.
Gas-operated system is featured, typically involving a gas cylinder and rear-driven piston directing energy to the bolt component.
(Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information)


5.56x45mm NATO

Sample Visuals**

Graphical image of a 5.56mm intermediate rifle cartridge
Rounds / Feed

200-round disintegrating belt.
Cartridge relative size chart
*May not represent an exhuastive list; calibers are model-specific dependent, always consult official manufacturer sources.
**Graphics not to actual size; not all cartridges may be represented visually; graphics intended for general reference only.

wz. 2003 - Base Series Designation
wz. 2003S - Standard model; 7.53kg weight, 1,099mm overall length, 500mm barrel length.
wz. 2003D - Shortened, folding-stock variant for airborne assault troopers; 7.29kg weight; 979 overall length; 380mm barrel length.

Military lapel ribbon for the American Civil War
Military lapel ribbon for pioneering aircraft
Military lapel ribbon for the Cold War
Military lapel ribbon for the Korean War
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the Ukranian-Russian War
Military lapel ribbon for the Vietnam War
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2

Ribbon graphics not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns / operations.


Disclaimer | Privacy Policy | Cookies

2023 Military Pay Chart Military Ranks DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com.

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world, WDMMA.org (World Directory of Modern Military Aircraft), WDMMW.org (World Directory of Modern Military Warships), SR71blackbird.org, detailing the history of the world's most iconic spyplane, and MilitaryRibbons.info, cataloguing all American military medals and ribbons.

©2023 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2023 (20yrs)