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Armaguerra OG-43
An OG-44, version of OG-43 with fixed wooden stock
Type	Submachine gun
Place of origin	Italian Social Republic
Service history
Used by	Italian Social Republic
Wars	World War II
Production history
Designer	Giovanni Oliani
Manufacturer	Società Anonima Revelli Manifattura Armiguerra
Variants	OG-44
Specifications
Mass	3.18 kg
Length	720mm, 470 mm closed stock

Caliber	9×19mm Parabellum
Action	Blowback
Rate of fire	500 rounds/min
Muzzle velocity	~480 m/s
Maximum firing range	effective ~150 m max 200 m
Feed system	40-round detachable box magazine

The Armaguerra OG-43 (Armaguerra Mitra Oliani Giovanni) and its subsequent version, OG-44, were submachine guns manufactured in small numbers in the Republic of Salo.

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Origins and development

The OG-43, designed by Giovanni Oliani in the factory based in Cremona named Società Anonima Revelli Manifattura Armiguerra, was an advanced submachine gun, designed for compactness and ease of mass production. It is part of a family of weapons produced under emergency measures during the time of the Italian Social Republic, which include the TZ-45 machine gun, FNAB-43 and Isotta Fraschini. The next version, the OG-44, instead had a more traditional shape. The Ministry of War of the RSI had approved the construction, but it was never initiated as events unfolded.

Description

The OG-43 sported a very modern design, compared to its contemporaries. The receiver was made of stamped sheet metal, with the magazine serving as a grip. The bulk of the L-shaped bolt, along with the recoil spring, was housed in a cylinder directly above the barrel, which helped reduce muzzle climb when firing. The reciprocating cocking handle was located in the forward section of the bolt housing. The weapon was short-recoil blowback operated, and fired from an open bolt in both automatic and semi-automatic mode. Adjustable iron sights were fitted, with two possible settings for either 100m or 200m. Initially equipped with forward-folding metal stock, later production runs were fitted with simpler, wooden fixed stocks. It used the same double-stack magazines as the Beretta MAB 38, available in 10, 20, 30 or 40 rounds.

OG-44

The OG-44 version exhibited more traditional lines. It adopts the traditional wooden stock hinged to the pistol grip, positioned behind the trigger and the magazine well. It was slightly heavier than the OG-43, as well as the total length of 787 mm.

Sources

Pierangelo Tendas, Armaguerra Cremona OG44

External links

v t e Italian firearms and light weapons of World War II
Side arms	Beretta M1923 Beretta M1934 Beretta M1935 Roth–Steyr M1907 Steyr M1912 Glisenti M1910 Bodeo Model 1889
Rifles and carbines (fucili e moschetti)	Fucile da Fanteria Mod. 1891 Moschetto Mod. 91 da Cavalleria Moschetto per Truppe Speciali Mod. 91 Fucile Mod. 1938 Armaguerra Mod. 39 rifle Moschetto Automatico Revelli-Beretta Mod. 1915
Submachine guns	MAB 38 Onorati Carabinetta Automatica O.V.P FNAB-43 OG-43 TZ-45
Machine guns and other larger weapons	Fiat-Revelli Mod. 1914 Fiat Revelli Mod. 1935 SAFAT M1926 Breda-SAFAT Breda Mod. 1930 Breda Mod. 5C Breda Mod. 1937 Breda Mod. 1938 Solothurn S-18/1000 Fucile Controcarro 35(P)
Grenades	OTO Mod. 35 OTO Mod. 42 SRCM Mod. 35 Breda Mod. 35 Breda Mod. 42 L Type P Bomb
Mortars (mortai)	Brixia Model 35 81/14 Model 35 Mortar
Cartridge	.32 ACP .380 ACP 6.5×52mm Mannlicher-Carcano 7.35×51mm Carcano 8×57mm IS 8×59mm Rb Breda 9×19mm Glisenti 9×19mm Parabellum 20×138mmB

This page was last edited on 19 January 2024, at 15:14

Armaguerra OG-43

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