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Steyr AUG H-Bar



Overview


Steyr AUG H-Bar

Right side view of Steyr AUG H-Bar with 30 round magazine and bipod extended.
Source: Kin93 via www.imfdb.org - © Copyright lies with original owner

Origin
Austria
Type
Light machine gun
Entered service
1980's
Status
Limited service
Development
Late 1970's (estimate)
Developer
Austria - Steyr-Daimler-Puch
Production
1980's - 2000's (estimate)
Producer
Austria - Steyr-Daimler-Puch (Steyr-Mannlicher after 1989)
Number produced
Produced in limited numbers
Designations
H-Bar / Heavy barrel
HBAR / Heavy Barrel Assault Rifle
Notable users
Luxembourg
Saudi Arabia

Description


Introduction

The AUG H-Bar is a late Cold War era light machine gun of Austrian origin. It is a modification of the AUG assault rifle family, which spans the whole range from 9mm sub machine gun to 5.56mm light machine gun. Although not a bad attempt at a light machine gun conversion, it sold just as bad as its contemporary competitors.

Design

The AUG H-Bar is derived from the AUG A1 model and retains the integral 1.5x optical sight. It could be ordered in regular closed bolt version or as an open bolt version which allows for more sustained fire. In the AUG the barrel already was of a quick change design. A longer and heavier barrel is used in the H-Bar, which is fitted with a bipod. A special 42 round magazine was developed, which can also be used in the regular AUG. A version with optical sight for the marksman role was also developed.

Firepower

The AUG H-Bar fires the 5.56x45mm M193 or NATO ammunition from a 42 round magazine. Cyclic rate of fire is about 680 rpm. The bipod and heavier barrel makes it more suitable in the light machine gun role. These also improve the effective range against area targets over the regular AUG.

Users

The AUG H-Bar was adopted by several nations in limited numbers. These include Luxembourg and Saudi Arabia. Some nations acquired these for special forces or paratrooper use. Due to limited sales there never was a H-Bar variant of the upgraded AUG A3. The H-Bar is no longer marketed for military sales, but a barrel set is apparently is produced in the US for civilian sales.

Variants


Steyr AUG HBAR

Light machine gun variant derived from the AUG A1 with its fixed 1.5x optical sight. Fires from open bolt and uses 42 round magazines, in addition to the regular 30 round ones. Later on it was marketed as the AUG LMG to better distinguish it from the HBAR-T model in its intended role.

Steyr AUG HBAR-T

Marksman variant of the AUG. This uses the longer barrel with bipod, but a regular closed bolt receiver that is modified with a STANAG scope mount. This is used with the Kahles ZF69 6x42 scope or a Schmidt & Bender 4x25 scope.

Details


Facts AUG HBAR
General
Origin
Austria
Type
Light machine gun
Caliber
Caliber
5.56x45mm M193 or NATO
Feed system
42 round detachable box magazine
30 round magazine optional
Barrel length
621 mm
Rifling
4 grooves, 229 mm right hand twist
Muzzle velocity
1.000 m/s for M193, 945 m/s for M855
Operation
Action
Gas operated, short stroke gas piston, fires from open bolt
Locking
Rotating bolt
Fire selector
Push pin safety
Two stage trigger for semi and full automatic fire
Rate of fire
680 rpm
Dimensions
Stock type
Fixed, bullpup design
Length
900 mm
Height
275 mm without magazine and bipod stowed
Weight
4.9 kg empty
Sights
Optics
1.5x optical sight
Mechanical
Backup non-adjustable sights on top of optical sight
Accessories
Bipod
Fixed foldable bipod on barrel
Quick change barrel
Yes

Media


Related articles


Steyr AUG

The AUG HBAR is a light machine gun variant of the AUG A1 assault rifle.