Could the US, UK, Russia, and China be called de facto gun runners?

With the US, the UK, Canada, Russia, and China providing the most arms to the world doesn’t that make then de facto gun runners? Be it child soldiers in Serra Leone, FARC in Latin America to dozens of other mini wars and border skirmishes they could not do business with out arms. They don’t own munitions factories or those that make fire arms and weapons. Even if the weapons that cause so much death got there by way of nefarious dealings by the governments they were sold too (somehow I believe only a small percent) it could not have happened without someone arming them 1st. If you could equate it to drugs wouldn’t the US, UK, Russia and China be like the cartel and those who leak them to gorilla fighters like the middle men or street dealer?