some nations have their weapons use an AR-15 Body/Receiver with counterparts of other weapons, such as the stock of an AK-47
Here are some mentions:
Cereskia
AR-56&AR-56B
Arcturus Novus
A96
Roegerland
M83A2
Broader Confederate
M2
Corindia
IR3 "Guadaña" Infantry Rifle
Does your country have AR-15s? tell me!