Oh! The Taiwanese GPMG! First time to see it so detailed, very well done drawing! Thanks DP.
Some postwar SMG:
The first one is a classic, the Czech CZ Sa 23/25 vz. 48. Designed by Jaroslav Holeček, a blowback action gun, incorporated for first time the telescopic bolt. This inovation reduces the required length of the submachine gun significantly and allows for better balance and handling. Handling was further improved by using a single vertical handgrip housing the magazine and trigger mechanism, roughly centered along the gun's length. The very well known UZI is inspired in this SMG. Sa 23/25 is chambered in 9x19, and Sa 24/26 in 7.62x25. Sa 23 / 24 had a wooden buttstock, and Sa 25 a forward folding metal stock.
Modeled by the IMI Uzi, Fabricaciones Militares, of Argentina, made in the 1970s the FMK-3 submachine gun, with the notable difference that the Argentinian smg had a grip safety device on the rear of the grip which must be squeezed in order to fire the weapon. 30,000 were made and were used in Argentina and several South American countries.
The succesor of the Star Z-45 was Z-63 in the early 1960s. Chmbered in
the current Spanish 9 x 23 mm, was used by the military and police in Spain, but the rather uncommon caliber prevented any foreign order. In order to avoid this, in the early 1970s several improvementes were made (a simple trigger with fire selector instead the previous progressive trigger) together with the chambering in the much more common 9 x 19 Parabellum round. A good and reliable weapon, it was used by Spanish military and Guardia Civil (militarized police).
Cheers.