The M1985 light tank was developed and manufactured in North Korea. It was designed as a reconnaissance vehicle. It was first observed in 1985. The M1985 designation was allocated by the US Department of Defense. North Korean army operates a number of these amphibious light tanks, as well as several hundreds of Soviet PT-76 and Chinese Type 63 amphibious light tanks. North Korea is the only operator of this vehicle. It is unknown how many of these tanks are in service.

   This amphibious light tank has a welded steel hull. It uses extended chassis of the M1973 armored personnel carrier, with extra armor. It is believed that thin armor of this light tank is vulnerable to 12.7-mm rounds.

   Turret of the M1985 light tank is similar to that, of the Soviet PT-76, but has some modifications. It is armed with a non-stabilized 85-mm rifled gun, similar to that of the Chinese Type 63 amphibious light tank. This gun is loaded manually. Maximum rate of fire is up to 8 rounds per minute.

   This amphibious light tank is also fitted with an anti-tank missile launcher, possibly a locally manufactured version of the Malyutka (NATO designation AT-3 Sagger). This wire-guided missile has a maximum range of 3 000 m.

   There is also a coaxial 7.62-mm machine gun. Another roof-mounted 12.7-mm machine gun can be installed.

   The M1985 light tank has a crew of three, including commander, loader and driver.

   Vehicle uses a more powerful engine, than the M1973 armored personnel carrier. This light tank is fully amphibious with minimal preparation. On water it is powered by two waterjets.

   Recently North Korea revealed a new tracked armored personnel carrier was observed. It is based on a modified M1985 chassis.