FMK-3 Submachine Gun

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FMK-3 Submachine Gun
The FMK-3 is a selective fire, blowback operated submachine gun of Argentine origin and was designed by Fabricaciones Militares in 1974. Around 30,000 were produced for the Argentine military by 1991.

The FMK-3 is chambered in 9 mm, with a rate of fire of 650 rounds per minute. 20, 32, and 40 round magazines are available for the FMK-3 as well as the adaption of a silencer and grenade firing capability.

The FMK-3 is comparable, to the Heckler & Koch MP-5 in ergonomics (IE: selector switch, position of cocking handle, stock section) although it uses a grip inserted magazine, and performance (IE: firing from closed bolt, well balanced).

FMK-3

Main variant, The FMK-3 has a retractable wire stock. Fixed stocks have been recently made that can be installed by two prongs. FMK-3s have also been adapted with picatinny rails.

FMK-4

Rarely, variants are found with fixed polymer stocks, similar to that found on the H&K G3.

FMK-5

The FMK-3 is also produced for the civilian market, in semi-automatic-only version as the FMK-5.

FMK-3
Type Submachine gun
Place of origin Argentina
Service history
In service 1974-present
Used by Argentina
Wars Falklands War
Production history
Manufacturer Fabricaciones Militares
Produced 1974
Number built 30,000
Variants See Variants
Specifications
Weight 3.4 kg (7.5 lb) empty
Length 523 mm (20.6 in), stock folded
693 mm (27.3 in), stock extended
Barrel length 290 mm (11.4 in)

Cartridge 9x19mm Parabellum
Action Blowback, open bolt
Rate of fire 650 rounds/min
Effective range 100 m
Feed system 25, 32, and 40-round detachable box magazine
Sights Flip up iron sights
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