Type 58 assault rifle (NVA) of North Vietnam forces between 1964 and 1975. It was used by the Islamic Revolutionary Guard Corps (IRGC) and the militia Basij of Iran against the Army and the Republican Guard of Iraq in the Iran–Iraq War (1980–88). In Nicaragua the Sandinista Popular Army used Type 58 weapons against the Contras in the Sandinista Revolution (1980–90). Type 58 assault rifle The Type 58 is an assault rifle made in North Korea derived from the Soviet AK-47 designed by Mikhail Kalashnikov. It uses a 7.62×39mm cartridge. It is the longest version of the rifle at 890 mm, while the AK-47
Comparison of the AK-47 and M16 magazines had lighter sheet-metal bodies with prominent reinforcing ribs weighing empty. The current issue steel-reinforced plastic magazines are even lighter, weighing empty. Early steel AK-47 magazines are 9.75 inches long, and the later ribbed steel AKM and newer plastic magazines are about an inch shorter. The M16's magazine was meant to be a lightweight, disposable item. As such, it is made of pressed/stamped aluminum and was not designed to be durable. Therefore, it is easier to damage than an AK-47 magazine and the feed lips are proportionally weaker when compared to the AK-47. The M16 originally used a 20-round magazine