Besides the pictures I don’t know how much you can get from today’s Styr Aug manual, because it is written in Deutsh.
The Steyr AUG is an Austrian 5.56×45mm NATO bullpup assault rifle, designed in the 1960s by Steyr-Daimler-Puch and now manufactured by Steyr Mannlicher GmbH & Co KG.
It was adopted by the Austrian Army as the StG 77 (Sturmgewehr 77) in 1978, where it replaced the 7.62×51mm StG 58 automatic rifle (a licence-built FN FAL). In production since 1978, it is the standard small arm of the Austrian Bundesheer and various national police units. Its variants have also been adopted by the armed forces of dozens of countries.
The Styr Aug is a selective-fire, bullpup weapon with a conventional gas-piston-operated action that fires from a closed bolt. It is designed as a Modular Weapon System that could be quickly configured as a rifle, a carbine, a sniper rifle, a sub-machine gun and even an open-bolt squad automatic weapon.
The AUG employs a very high level of advanced firearms technology and is made with the extensive use of polymers and aluminum components. It is chambered in 5.56×45mm NATO cartridge and has the standard 1:9 rifling twist that will stabilize both SS109/M855 and M193 rounds. Some nations including Australia, Ireland and New Zealand use a version with a 1:7 twist optimized for the SS109 NATO round. The SMG versions are chambered for 9mm Parabellum. The AUG consists of six interchangeable assemblies: the barrel, receiver with integrated telescopic sight or Picatinny rail, bolt carrier assembly, trigger mechanism, stock and magazine.Styr Aug Manual Deutsch
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