Aircraft / Aviation Vehicles & Artillery Infantry Arms Warships & Submarines Military Ranks Military Pay Chart (2024)

Infantry Small Arms / The Warfighter

FNAB Model 1943

Submachine Gun (SMG) [ 1943 ]

The Kingdom of Italy employed several submachine gun types during World War 2 - the FNAB-43 being one of them.

Authored By: Staff Writer | Last Edited: 06/02/2017 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The FNAB Model 1943 achieved only modest production totals during World War 2 (1939-1945) and added to the variable stock of submachine gun (SMG) types used by the Italians in the conflict. A delayed blowback system of operation was selected for the action while chambering was in 9x19mm Parabellum feeding from a 20- or 40-round detachable box magazine. About 7,000 examples were produced by Fabbrica Nazionale d'Armi di Brescia (FNAB) of Italy from 1944 to 1945 and these found their way into the hands of operators from the Italian Social Republic, Italian Resistance forces and Nazi Germany before the end.

Brescia opted for a rather expensive milling and machining route which was interesting considering the wartime situation in Italy come 1943. The Parabellum cartridge was a no-brainer as it was a widely available pistol round and proven for submachine gun-type weapons. The deep magazines provided the operator with a considerable ammunition load, particularly when utilizing the 40-round count. Rate-of-fire reached 400 rounds-per-minute with muzzle velocity peaking at 1,250 feet per second. Sighting was through a front-and-rear iron arrangement.©MilitaryFactory.com
The shoulder stock was wired which added little weight to the weapon and it was also hinged at the receiver butt to fold over the weapon when not needed - thus reducing the weapon's profile considerably when on-the-march or in transport. The pistol stock was set under the receiver in the usual way with the magazine feed situated well-ahead of the trigger group. Magazines were straight and slender and served as a foregrip when firing the gun. Additionally, the magazine well was hinged to allow the magazine to fold forward and under the barrel for transport/marching - again reducing the chance of snagging the weapon on brush or clothing when on-the-move (this design feature is also seen in the French MAT-49 SMG detailed elsewhere on this site).

Internally the weapon relied on a two-piece bolt mechanism as part of the lever-delayed blowback action - a rather interesting and complicated engineering choice for a submachine gun design. What this resulted in, however, was a lower - and more controlled - rate-of-fire (400rpm) so as to aid accuracy and retard muzzle climb. A muzzle brake/compensator unit was fitted to the business end of the gun for further support and added as an extension of the heavily perforated barrel jacket.

Notable design work on the submachine gun occurred in 1942 which resulted in a prototype for evaluations. Serial production did not occur until 1944 and the gun lasted in useful circulation until the end of the war in Europe in May of 1945 after which point they seem to have fallen out of use rather quickly - indeed there proved a glut of better, cheaper submachine guns to be had in the post-World War 2 market.©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

Kingdom of Italy national flag graphic
Kingdom of Italy


Submachine Gun (SMG)

Fabbrica Nazionale d'Armi di Brescia - Italy
(View other Arms-Related Manufacturers)
National flag of modern Germany National flag of Nazi Germany National flag of Italy National flag of the Kingdom of Italy Kingdom of Italy (including resistance elements); Nazi Germany (specialist troops)
(OPERATORS list includes past, present, and future operators when applicable)

Overall Length
790 mm
31.10 in
Barrel Length
198 mm
7.80 in
Empty Wgt
8.60 lb
3.90 kg

Iron Front and Rear


Lever-Delayed Blowback; Selective-Fire

Blowback Operation
Gas pressure from the rearward movement of the ignited cartridge case provides the needed bolt movement, ejecting the spent case and stripping a fresh case from the magazine.
(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)


9x19mm Parabellum

Sample Visuals**

Graphical image of a 9mm pistol cartridge
Rounds / Feed

20- or 40-round detachable box magazine.
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.
Muzzle Velocity
1,250 ft/sec
(381 m/sec)

Model 1943 - Base Series Designation
FNAB-43 - Alternative Designation

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

2024 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. No A.I. was used in the generation of this content; site is 100% curated by humans.

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 military medals and ribbons. Special Interest: RailRoad Junction, the locomotive encyclopedia.

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