Sometimes all is not as it seems. That was the case when we examined this Steyr AUG. From the barrel and bipod it appeared to be an AUG in an HBAR or Heavy Barrel configuration but on closer inspection we found that it was in fact a rifle receiver, bolt and bolt assembly and chassis that had been paired with an HBAR barrel assembly.
Ordinarily, the HBAR could be modified to fire from an open, rather than closed, bolt. This example has the standard AUG progressive trigger for semi and full-auto. It does not have the modified bolt carrier, striker or trigger mechanism.
The HBAR has a 4x optic, rather than the rifle’s 1x, while the HBAR-T can be fitted with an optic like a Kahles ZF69 6×42.
Adoption of the AUG HBAR does not appear to have been widespread and Steyr don’t currently list it as an option amongst their upgraded AUGs. For more Steyr we have previously examined a Steyr AUG SMG conversion and a Steyr MPi 81. We’ll take an in depth look at the AUG and AUG HBAR in the future.
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Specifications (for a standard AUG HBAR):
Overall Length: 35.5in (90cm)
Barrel Length: 24.4in (62cm)
Weight: 8.6lb (3.9kg)
Action: Gas operated, rotating bolt – the HBAR typically fires from an open bolt, but this rifle-based example fires from a closed bolt.
Capacity: 30 or 42-round box magazines
Calibre: 5.56×45mm
The Armourers Bench 