M56 submachine gun

The M56 submachine gun is a Yugoslavian submachine gun chambered in 7.62×25mm Tokarev, designed for use with the Yugoslav People's Army. Initially a state-funded product, it was later produced by Zastava Arms and saw use in a number of conflicts following the breakup of former Yugoslavia. The M56 is based on the MP 40 submachine gun captured from Nazi Germany, easily distinguished from the MP 40 by its increased length and curved magazine.^[3]

Crvena Zastava Automat M56
Type	Submachine gun
Place of origin	SFR Yugoslavia
Service history
In service	1961–Present
Used by	see users
Wars	Vietnam War Yom Kippur War Lebanese Civil War Gulf War Yugoslav Wars[1]
Production history
Designed	1955–1959
Manufacturer	Crvena Zastava
Produced	1960–1975
No. built	88,998
Specifications
Mass	3 kg (6.61 lb)
Length	870 mm (34.3 in) stock extended / 591 mm (23.3 in) stock folded
Barrel length	250 mm (9.8 in)
Cartridge	7.62×25mm Tokarev
Action	Straight blowback, open bolt
Rate of fire	600 rounds/min
Effective firing range	200 m
Feed system	32-round detachable box magazine
Sights	Front blade, flip-up rear iron sights

Bayonet: a fairly effective melee weapon designed to be mounted on the end of the barrel of an M56 submachine gun, currently exhibited at the Museum of Miniature Professional Art Henryk Jan Dominiak in Tychy; 55 × 290 mm, made of metal and plastic.^[2]

Inexpensive and simple to produce and maintain, the M56 also proved to be quite effective at range over its German counterpart due to its 7.62×25mm cartridge having significantly higher velocity than the 9×19mm round used by the MP 40.

Internally the M56 lacks the telescoping recoil spring found in the MP 40. The magazine release also differs and is located directly behind the magazine instead of on the side of the receiver on the MP 40. The M56 also uses a double feed magazine (similarly to the Soviet PPS) contrary to the single feed magazines used on the MP 40. The M56 has a fire selector switch allowing the operator to fire in either semi or fully automatic which the MP 40 did not have. Disassembly also differed with the gun being taken apart via a rear end cap, separating the lower and upper receivers while the MP 40 this was accomplished by a button on the lower receiver located behind the magazine well. Another change from the MP 40 is that the M56 lacks the Bakelite resting bar below the barrel on the MP 40.

Users

• Bosnia and Herzegovina^[1]
• Iraq
• Lebanon
• Vietnam
• Yugoslavia
• Zambia^[4]