The Chinese Type 56 Carbine is just a Chinese built copy of the Russian Simonov SKS. All of the Type 56 carbine rifles have been removed from military service, except a few being used for ceremonial purposes. Type 56 carbines with serial numbers below 9,000,000 have the Russian-style blade-type folding bayonet, while those 9,000,000 and higher have a "spike" type folding bayonet. The SKS is a Russian semi-automatic rifle, designed in 1945 by Sergei Gavrilovich Simonov. ...
It's easy to confuse this rifle with the Chinese Type 56 Assault Rifle because of the name, but they are two very different rifles and are based on two different designs. It is still strange that the "Carbine" version is 15 cm longer than the "Assault rifle" version. The Chinese Type 56 Assault Rifle is a copy of the AK-47 Kalashnikov. ...
It was widely exported and produced by the former Eastern Bloc nations, as well as China, where it was called the "Type56" (and, in modified form, the "Type 68").
As with the American M1 Carbine, the SKS is shorter, lighter and less powerful than the semi-automatic rifles which preceded it - most notably, the Soviet SVT series and the American M1 Garand.
The SKS fell out of service amongst its host nations during the 1960s and 1970s, although the Chinese police and military forces continued to use it during the 1990s, and chromed, polished ceremonial versions are still used today in parades.
The Chinese didn't begin manufacturing their version of the SKS until 1956, as seen from the Type designation, but they purchased quantities of the Russian original after the first year of the Korean War to re-arm their armies in more consistent and logistically supportable manner.
The first Chinese SKS carbines were identical to their Soviet counterparts, and were adopted by the Peoples Republic of China as the Type56carbine.
The earlier type is 9" in length and resembles a knife blade.