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Steyr AUG
 
Steyr AUG
Country Austria
Type Assault rifle
Manufacturer Steyr Mannlicher
Introduction 1977
Specifications
Weight 3.6 kg (7.9 lb) (standard rifle)
3.3 kg (7.3 lb) (carbine)
3.2 kg (7.1 lb) (subcarbine)
3.9 kg (8.6 lb) (LMG)
3.3 kg (7.3 lb) (SMG)
Length 790 mm (31.1 in) (standard rifle)
690 mm (27.2 in) (carbine)
630 mm (24.8 in) (subcarbine)
900 mm (35.4 in) (LMG)
665 mm (26.2 in) (SMG)
Barrel length 508 mm (20.0 in) (standard rifle)
407 mm (16.0 in) (carbine)
350 mm (13.8 in) (subcarbine)
621 mm (24.4 in) (LMG)
420 mm (16.5 in) (SMG)
Height 275 mm (10.8 in)
266 mm (10.5 in) (SMG)
Cartridge 5.56x45mm NATO
9x19mm Parabellum (SMG)
Action Gas-operated, rotating bolt
Rate of fire 680–850 rounds/min
Muzzle velocity 940 m/s (3,084 ft/s) (standard rifle)
Effective range Sighted for 300 m
Feed system 30 or 42-round box magazine
Sights Swarovski 1.5x telescopic sight, back-up iron sights

The AUG is an Austrian 5.56 mm assault rifle, designed in the early 1970s by Steyr Mannlicher GmbH & Co KG (formerly Steyr-Daimler-Puch). The AUG (Armee Universal Gewehr - \"universal army rifle\") was adopted by the Austrian Army as the StG 77 (Sturmgewehr 77) in 1977, where it replaced the aging 7.62 mm StG 58 automatic rifle (a license-built FN FAL). In production since 1978, it is the standard small arm of the Austrian Bundesheer and various police units. It has also been adopted by the armed forces of Argentina, Australia (accepted into service in 1985 and manufactured by Australian Defence Industries in Lithgow, this Austeyr model is also in use by New Zealand), Bolivia, Ecuador (1988), Ireland, Luxembourg, Saudi Arabia, Tunisia (introduced in 1978), Pakistan and since 1988, the U.S. Immigration and Customs Enforcement agency.