Originally, the Type 56 was a direct copy of the AK-47's final iteration, the Type 3 AK-47, and featured a milled receiver. Starting in the mid-1960s, the guns were manufactured with stamped receivers much like the Soviet AKM. Visually, most versions of the Type 56 are distinguished from the AK-47 and AKM by the fully enclosed hooded front sight (all other AK pattern rifles, including those made in Russia, have a partially open front sight).
Bron: Wikipedia