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Owen



Overview


Owen Mk 1/42

Original production model of the Owen with metal skeleton stock and ribbed barrel section.
Source: Unknown author - © Copyright lies with original owner

Origin
Australia
Type
Sub machine gun
Entered service
1942 or 1943
Status
Out of service
Development
1931 - 1938 (earlier SMG designs)
1938 - 1939 (Owen)
Developer
Australia
Evelyn Owen
Production
1942 - 1944
Producer
Australia - Lysaght Works
Unit cost
8 - 12 Australian pound during World War 2
Number produced
45.433
Designations
Owen machine carbine (official designation)
MP 752(e) (Beutewaffen index)
Notable users
Australia

Description


Introduction

The Owen is a World War 2 era sub machine gun of Australian origin. It was developed as a private venture by Evelyn Owen. He started with various designs in 1931 and produced a variety of prototypes in various calibers. These did include very uncommon rounds for sub machine guns, such as .22 LR, .38 Special and .32 ACP. Final designs settled on .45 ACP as used in the Thompson and 9x19mm as used in the Sten. The latter was eventually selected.

Design

The Owen gun was a officially designated as a machine carbine and was a rather heavy design. It had a fixed stock, top feeding magazine, a pistol grip and a front vertical grip. It is a blowback operated weapon that fires from an open bolt. The top feeding magazine and two chamber receiver made the Owen more reliable than the Sten and Thompson in sand and mud testing. Throughout production changes were made, such as the barrel fluting, stock design and various efforts to reduced the weight.

Firepower

The Owen fires the 9x19mm Parabellum from a 33 round top feeding detachable box magazine. The selector allows for semi-automatic and fully automatic fire. Cyclic rate of fire is 700 rpm. Practical effective range is quoted as 135 meters and a maximum range of 200 meters. The pistol grip and forward grip were to aid in firing the Owen from the hip.

Users

The Owen was adopted by Australia when Sten guns were in short supply. Over 45.000 were produced domestically. These served in World War 2, the Korean War and Vietnam War. Although heavy, the Owen was liked for its reliability. It was a standard issue weapon in Australia until replaced in 1971 by the F1 sub machine gun. Various other nations in Asia also used smaller quantities of the Owen during and after World War 2.

Variants


Owen Mk 2

Right side view of a former New Zealand Army 1943 production model Owen Mk 2. Note the non-fluted barrel and lightening cuts in the metal of the receiver.
Source: Museum of New Zealand - © Copyright lies with original owner

List of Owen variants

Owen Mk 1/42
Original production model with metal skeleton stock. Most have a heavy barrel with a ribbed section in front of the receiver for improved cooling.
Owen Mk 1/43
Updated production model with wooden stock. These wooden stocks were either solid, had lightening cuts or were hollowed out to fit an oil bottle and cleaning kit. Some, or perhaps most, were fitted with a smooth barrel that was lighter, less costly and less time consuming to produce. Possibly called Owen Mk 1* in Australian service.
Owen Mk 2
Variant with various weight reduction features. The empty weight was reduced to 3.47 kg. Also known as Mk 2/43. Various reports ranging from small numbers to over four hundred guns produced.

Details


Facts Owen
General
Origin
Australia
Type
Sub machine gun
Caliber
Caliber
9x19mm Parabellum
Feed system
33 round detachable box magazine
Barrel length
250 mm
Rifling
7 grooves, right hand twist
Muzzle velocity
366 m/s
Operation
Action
Simple blowback
Locking
None, open bolt
Fire selector
0 - 1 - F
Rate of fire
700 rpm
Dimensions
Stock type
Fixed
Length
813 mm
Width
75 mm
Height
0.4 m with magazine
Weight
4.23 kg empty
4.86 kg with loaded magazine
Sights
Mechanical
Offset sights, hooded post front, peep sight rear
Sight radius
0.4 m
Accessories
Grip
Fixed forward vertical grip

Related articles


Sten

The Owen supplemented the Sten in Australian service. The Sten was the reason for the Owen to be chambered in 9x19mm.

Thompson

The Owen design was tested in .45 ACP prior to adoption since the Thompson in Australian service at that time was chambered in .45 ACP.