The Steyr AUG (Armee Universal Gewehr, "Universal Army Rifle") is an Austrian 5.56×45mm NATO bullpupassault rifle designed in 1977. The weapon features a very large trigger guard that covers the pistol grip, a tubular vertical foregrip and an integrated optical sight in most models.
AUG HBAR is the light machine gun variant with a longer, heavier barrel and a bipod.