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Tallinn Model 1923 (Arsenal M23)


Submachine Gun (SMG) (1926)


Infantry Small Arms / The Warfighter

Jump-to: Specifications

The Tallinn Model 1923 was an Estonian attempt at an indigenous submachine gun design - fewer than six hundred were produced in 1926.



Authored By: Staff Writer | Last Edited: 02/22/2017 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
In the mid-1920s, the Army of Estonia took delivery of a new submachine gun - a homegrown product known as the "Tallinn Model 1923" (or the "Arsenal M23"). The gun emerged from the Estonian military arsenal at Karjamaa, Tallinn and thus received its name from its place of origination. This little-remembered weapon appeared in the post-World War 1 era and fewer than 600 were completed (sources state approximately 570 units being made). The series saw service with military and police forces within Estonia and found renewed life during the Spanish Civil War (1936-1939) where it fought under the banner of the Spanish Republic.

Design work, attributed to Johannes Teiman, began in 1926 and resulted in a submachine gun borrowing much of the form and function of the German Bergmann MP18/1 - a development of the German Empire encountered during the latter stages of World War 1 and becoming the first practical submachine gun anywhere in the world.

The Estonian take on this gun involved chambering for the 9x20mm SR Browning cartridge to keep it in line with the Army's FN M1903 semi-automatic service pistol (as it used the same ammunition). Overall length was 809mm with a barrel measuring 210mm long. The internal action was blowback and feeding was by way of a 40-round detachable box magazine. Rate-of-fire was 600 rounds-per-minute with a muzzle velocity of 365 meters-per-second. Iron sights allowed for ranging out to 600 meters.

Like the Bergmann design, the Model 1923 used a single wood piece to form the forend, receiver base, grip handle, and shoulder stock. A perforated jacket (horizontal slots) was set around the barrel to accentuate air-cooling and, in addition to this, cooling fins were machined directly onto the barrel. Unlike the Bergmann, a revised bolt was fitted that featured a smaller frontal aspect. Sling loops were added under the barrel jacket and under the shoulder stock. The trigger unit was underslung in the typical fashion for a submachine gun of the period.

The Tallinn Model 1923 entered service in 1926 and was in constant use up until about 1940, some eventually being sold off to Latvia. It was given up by Estonia sometime in the early 1930s however and never made a comeback as the Army moved on to the long-lasting Suomi KP/-31 submachine gun originating from Finland. The Model 1923 then fell to firearms history - one of the few guns to have ever come out of Estonia.

Specifications



Service Year
1926

Origin
Estonia national flag graphic
Estonia

Classification


Submachine Gun (SMG)


Estonian Arsenal (Karjamaa, Tallinn) - Estonia
National flag of Spain Estonia; Latvia; Spain
(OPERATORS list includes past, present, and future operators when applicable)


Overall Length
809 mm
31.85 in
Barrel Length
210 mm
8.27 in
Empty Wgt
9.44 lb
4.28 kg
Sights


Iron Front and Rear


Action


Blowback; Full-Automatic Fire

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.
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)


Caliber(s)*


9x20mmSR Browning

Rounds / Feed


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.
Max Eff.Range
500 ft
(152 m | 167 yd)
Rate-of-Fire
600
rds/min
Muzzle Velocity
1,200 ft/sec
(366 m/sec)


Tallinn Model 1923 - Base Series Designation
Arsenal M23 - Alternative Name


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