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FMK-3



Overview


FMK-3

Left side view of FMK-3 sub machine gun with stock in retracted position.
Source: www.vn-amps.com.ar - © copyright lies with original owner

Origin
Argentina
Type
Sub machine gun
Entered service
Mid 1970's
Status
Limited service
Development
1974
Developer
Argentina - Fabricaciones Militares
Production
1974 - 1993
Producer
Argentina - FMAP
Number produced
Over 85.000 produced, production complete
Designations
PA-3DM (early designation)
Notable users
Argentina

Description


Introduction

The FMK-3 is a sub machine gun of Argentine origin. It was developed in the mid-1970's to replace a wide variety of sub machine guns in Argentine service.

Design

The design of the FMK-3 is heavily influenced by the Israeli Uzi and Czechoslovak Vz 23, both in looks and internal mechanism. It is a blowback operated sub machine gun with a telescoping bolt. The magazines are inserted in through the pistol grip which is fitted with a grip safety. A retractable metal wire stock is fitted. A small batch was produced with fixed wooden stock.

Firepower

The FMK-3 fires the 9x19mm round from 25, 32 or 40 round magazines. It is a select fire weapon with a rate of fire of 650 rounds per minute. The effective range is claimed to be 100 meters.

Users

The main user of the FMK-3 is Argentina. It has also been widely exported to other South American nations.

Variants


FMK-3

Left side view of FMK-3 sub machine gun with 25 round magazine and stock in extended position.
Source: www.bp.blogspot.com - © copyright lies with original owner

List of variants

FMK-3
Most common version. It is select fire and has a retractable stock.
FMK-4
FMK-3 with a fixed wooden stock.
FMK-5
Civilian model of the FMK-3 that fires semi-automatic only.

Details


Facts FMK-3
General
Origin
Argentina
Type
Sub machine gun
Caliber
Caliber
9x19mm Parabellum
Feed system
32 round detachable box magazine
25 and 40 round capacity also available
Barrel length
290 mm
Rifling
6 grooves, right hand twist
Muzzle velocity
About 350 - 400 m/s
Operation
Action
Blowback, open bolt
Locking
None
Fire selector
0 - 1 - F
Rate of fire
650 rpm
Dimensions
Stock type
Retractable wire stock
Length
693 mm stock extended
523 mm stock retracted
Weight
3.4 kg empty
Sights
Mechanical
Iron sights, flip up rear sight
Range adjustment
50 and 100 m gradations
Optics
None

Related articles


Vz. 23

The design of the FMK-3 is based on the Czechoslovak Vz 23.

IMI Uzi

The internal mechanism of the FMK-3 is similar to the Uzi, which in turn is also inspired by the Vz 23.