AP-42

AP-42
Place of origin	Elatia
Service history
In service	1942 - 2000
Used by	Elatian Army
Production history
Designed	1942
Produced	1942 - 1955
Variants	See Variants
Specifications
Weight	3.4-3.5kg empty
Length	760mm
Barrel length	200mm
Cartridge	9x19mm
Action	Blowback, open bolt
Rate of fire	Select fire
Effective firing range	100-150m
Feed system	32-rounds box magazine
Sights	fixed iron sight

The AP-42 ('Automata Pistolo 1942') is a model of submachine gun employed by Elatia. It entered service with the Elatian Army in late-1942.

Conceptualisation

The Elatian Army before the Second Belfro-Elatian War did not pay much attention to submachine guns. They regarded the primary close combat weapons of the infantry squad to be the bayonet and hand grenade. The submachine gun which they did possess, the AP-33, was both heavy and expensive to produce and primarily issued to squad leaders only.

The outbreak of war in 1941 led to a significant increase in the demand for submachine guns. A weapon which was both cheap and easy to manufacture had to be introduced rapidly. In the circumstances, Elatian engineers took inspiration primarily from the Arthuristan Sten gun, samples of which were procured from Tikal via organised crime. They took the simple blowback design, changed the orientation of the magazine from horizontal to vertical, relocated the simple fixed iron sights and added protection for them. The upper receiver is then mated to a lower receiver made of wood to which an underfolding stock was attached.

The gun was conceptualised at the outset with ease of assembly in mind. Its designers minimised the number of parts which required stamping or even welding. Instead, wherever possible, the gun was put together using threads and screws. They were made not only by arms factories, which were under the constant threat of strategic bombing, but also in sheds and workshops by schoolchildren, housewives and clerics. Circa 6 million would be produced before the end of the war.

The design's greatest weakness was its magazine. Of double-stacked, single-feed construction, it was sometimes prone to jamming if not properly handled, especially because it is also intended to be used as a front grip. The weapon's designers partially counteracted this by reinforcing the feed lip in the production variant, although problems would persist.

Wartime service

The introduction of an extremely low cost automatic weapon transformed the Elatian infantry. Originally disadvantaged owing to its use of a bolt action rifle against an enemy primarily armed with a semi-automatic weapon, the AP-42 made the close assault tactics favoured by Elatian commanders much more viable.

A late-war Elatian infantry platoon would on average have two rifle squads of six bolt action rifles, three submachine guns and a light machine gun, as well as an assault squads equipped with nine submachine guns and a single light machine gun. In other words, 60% of the platoon was equipped with an automatic weapon.

Post-war modification

Subsequent to the war, the Elatian arms industry had an opportunity to review the performance of various small arms and implement refinements. In respect of the AP-42, little could be done about the magazine design. However, the buttstock was a feature which could be improved. Troops complained of the underfolding stock being awkward to use. As a result, semi-official fixed stock variants made of wood or metal would often be installed as an expediency. Accordingly, beginning in 1947, the AP-42 was given a side-folding stock. New guns, or those so modified, were given the designation of AP-42B.

Post-war service

Owing to the sheer ubiquity of the weapon in Elatian service in the post-war era, the weapon persisted in frontline service until it was replaced in the submachine gun role by the AK-54. Subsequently, it continued to be used by pilots, vehicle drivers and rear-area personnel as a self-defence weapon, as well as by reservists and militiamen. They can still sometimes be found in among Elatian paramilitary and security forces as of the 2020's, for example, in the armouries of remote rural police departments, or security guards for banks, railways and post offices.