Type 80 machine gun

The Type 80 () is a general-purpose machine gun manufactured by Norinco in China, based on the Soviet PKM. The machine gun was certified for design finalisation in 1980 and entered the PLA service in the mid-1980s, specifically in 1983. The Type 80 was intended as a successor to the Chinese independently developed Type 67, doing well in tests conducted in the Chengdu Military Region before it was dropped and instead, opted to keep the Type 67 GPMG in use.
Only a few Type 80s were used in the People's Liberation Army Marine Corps and airborne units, and a modified Type 80, named as Type 86, was then accepted by PLA armor units.
History.
The development of the GPMG started when Chinese firearms engineers studied PKMs that were captured from Vietnamese forces during the Sino-Vietnamese War.
Changfeng Machinery was subcontracted to create the CS/LM4 in order to have it chambered to 7.62 NATO caliber. The CS/LM4 has been marketed to countries that have used Soviet/East European/Chinese-made small arms, but have oriented to use NATO-based ammo.
Design.
The Type 80 chambers and fires the 7.62×54mmR round. It is a gas-operated, air-cooled, belt-fed, fully automatic firearm. It can fire on both the tripod and the foldable bipod on the gas tube below the barrel. Belts are used from 100-round boxes in the light machine gun configurations, and from 200- or 250-round boxes in tripod-mounted applications. The machine gun uses an open iron sight, but can also be fitted with an optical or night-vision sight.