Agency for Defense Development
The Daewoo Precision Industries K1/K1A is a South Korean selective-fire assault rifle developed by Agency for Defense Development (ADD) and manufactured by Daewoo Precision Industries (now S&amp;T Motiv) and Dasan Machineries (since 2016). It entered service in the Republic of Korea Armed Forces in 1981. Although the K1 uses .223 Remington, it is classified as a submachine gun by the South Korean military and the manufacturer, because the K1 was intended to replace the M3 submachine gun.