Kalashnikov rifle

A Kalashnikov rifle is any one of a series of automatic rifles based on the original design of Mikhail Kalashnikov. They are officially known in Russian as "Avtomat Kalashnikova" ("Kalashnikov's Automatic Gun"; Russian: Автома́т Кала́шникова), but are widely known as Kalashnikovs, AKs, or in Russian slang, as a "Kalash". They were originally manufactured in the Soviet Union, primarily by Izhmash, but these rifles and their variants are now manufactured in many other countries.

The primary types of Kalashnikov rifles include:

Early variants (7.62×39mm)

Modernized (7.62×39mm)

Low-impulse variants (5.45×39mm)

The 100 Series

5.45×39mm / 5.56×45mm / 7.62×39mm

Other weapons

AK-12 series

These rifles have been manufactured in many countries, with and without licenses.

RK 95 TP, (7.62×39mm) improvements including a fire control selector and a muzzle device that enabled the firing of rifle grenades, the attachment of a silencer, or bayonet

Automatiku Shqiptar Tipi 1982 (ASH-82) Albanian Automatic Assault Rifle Type 1982 [Made in Poliçan Arsenal] (Straight forward copy of AKMS)

Automatiku Shqiptar model 56 (ASH-78 Tip-2) Albanian Light Machine Gun [Made in Poliçan Arsenal] (Straight forward copy of RPK)

Automatiku Shqiptar model 56 (ASH-78 Tip-3) Albanian Automatic Hybrid Rifle Model 56 Type-3 [Made in Poliçan Arsenal] (Hybrid rifle for multi-purpose roles mainly Marksman rifle with secondary assault rifle and grenade launcher capability)

Other unknown variants.
Several other unnamed & unidentified versions of the AKMS have been produce mainly with short barrels similar to the Soviet AKS-74U mainly for special forces, Tank & Armoured crew also for Helicopter pilots and police.
There have also been modifications and fresh production of heavily modified ASh-82 (AKMS) with SOPMOD accessories, mainly for Albania's special forces RENEA & exports.

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Wikipedia