Sterling



Overview


Sterling Mk 4

Top view of Sterling Mk4 sub machine gun with stock collapsed underneath the barrel.
Source: www.deactivated-guns.co.uk - © Copyright lies with original owner

Origin
United Kingdom
Type
Sub machine gun
Entered service
1953
Status
Limited service
Development
1944 - 1951
Developer
United Kingdom
Production
1953 - 1988
1966 - 1985 (Mk 5)
1977 - ? (India)
Producer
United Kingdom - Sterling Armaments Company, Dagenham
United Kingdom - Royal Ordnance Factores, Fazakerly
Canada - Canadian Arsenals Limited
India - Indian Ordnance Factories, Kanpur
Number produced
Over 400.000
Designations
Patchet Machine Carbine
L2A3 (UK designation for Mk 4)
L34A1 (UK designation for Mk 5)
C1 (Canadian designation)
Carbine 1A (Indian designation for Mk 4)
Carbine 2A1 (Indian designation for Mk 5)

Description


Introduction

The Sterling is a sub machine gun that was designed in the United Kingdom after World War 2. The Sterling started its life as the Patchet Machine Carbine. The design was initiated at the end of World War 2. It was to replace the cheap Sten with a more accurate high quality weapon.

Design

The Sterling has very distinct looks with the curved magazine that is inserted sideways. The bolt has spiral grooves that collect dirt within the weapon, making it very reliable for a blowback weapon. The Sterling also is one of the few sub machine guns that can mount a bayonet.

Firepower

The Sterling fires the 9x19mm Parabellum round from a 34 round magazine. Most versions, including the ubiquitous Mk 4, are select fire weapons firing from an open bolt. Semi-automatic versions fire from a closed bolt for increased accuracy. Even though it is a very simple weapon it is known to be accurate and reliable.

Users

The Sterling was used by most Commonwealth forces and exported to over 70 nations. Many countries have replaced the Sterling with more modern designs or assault rifles. However, the Sterling still remains in active service in various nations.

Variants


Sterling Mk 4

The Mk 4 is the most widely produced variant of the Sterling family of sub machine guns. The Mk 4 is known in British service as the L2A3. The Mk 2 (L2A1) and Mk 3 (L2A2) were batches with subsequent improvements until the design finally settled on the Mk 4 in 1956. The Mk 6 is a special semi-automatic police carbine that fires from the closed bolt position.

Sterling Mk 5

The Sterling Mk 5 was adopted as the L34A1 in British service in 1966. The Mk 5 is a silenced variant dedicated for special operations personnel. The barrel within the integrated silencer has 72 radial holes. This allows the Mk 5 to use standard 9x19mm ammunition instead of special subsonic ammunition. It is intended to be fired semi-automatic, but can fire fully automatic if necessary.

Sterling Para-pistol

The Sterling Mk 7 was developed for paratroopers and is a very rare weapon. The Mk 7A is a select fire weapon that fires from an open bolt position. The Mk 7C is fitted a semi-automatic weapon that is more accurate since it has a much longer barrel and fires from the closed bolt position.

Details


Facts Sterling Mk 4 Sterling Mk 5 Sterling Mk 7A
General
Origin
United Kingdom
Type
Sub machine gun
Caliber
Caliber
9x19mm Parabellum
Feed system
34 round detachable box magazine
10 and 15 round capacity available
Barrel length
198 mm
Rifling
6 grooves, 250 mm right hand twist
Muzzle velocity
390 m/s
Operation
Action
Gas operated, blowback, fires from open bolt
Locking
None
Fire selector
0 - 1 - F
Rate of fire
550 rpm
Dimensions
Stock type
Collapsible
Length
690 mm stock extended
483 mm stock collapsed
Weight
2.72 kg empty
Sights
Mechanical
Iron sights, hooded post front and flip-up peep rear
Sight radius
410 mm
Adjustment
100 and 200 yards
Optics
None
Accessories
Bayonet
Can be fitted on Canadian C1 model

Media


Related articles


Sten

The Sterling replaced the World War 2 era Sten sub machine gun. The Sterling is of a much higher quality level than the Sten, which was produced as cheaply as possible.