The Steyr Arms AUG A3 M2 is a semi-automatic bullpup rifle chambered in 5.56/.223 with a 16-inch barrel. It comes with a 30-round magazine and a Green stock. The M2 variant includes an extended NATO rail for optic mounting. 
 

Key Specifications 

• Brand: Steyr Arms 
• Model: AUG A3 M2 
• Caliber: 5.56 NATO 
• Action: Semi Auto 
• Capacity: 30 
• Barrel Length: 16" 
• Color/Finish: Green 
   

Detailed Features 

• Bullpup layout places the action behind the trigger group for a compact overall length at 16-inch barrel 
• 30-round magazine capacity 
• Green polymer stock 
• Extended NATO rail on the A3 M2 variant for optic or accessory mounting 
• Right-hand configuration as listed

AUG A3 M2 owners consistently point to the bullpup form factor as the primary draw. Getting a 16-inch barrel in a package shorter than a conventional carbine is the main selling point, and most owners feel the Steyr delivers on that premise with a solid, well-fitted build.

The Green stock is a point of discussion. Some owners prefer the classic military-palette look and find it holds up well in the field; others would have preferred a black or FDE option and consider the green limiting for their use case. The NATO rail on the M2 gets consistent praise for making direct optic mounting straightforward without adapters.

The AUG A3 M2 sits at the higher end of the semi-automatic rifle price range, and owner opinions on value vary accordingly. Those who specifically wanted the AUG platform tend to feel the fit, finish, and reliability justify the cost. Buyers who came from AR-pattern rifles sometimes find the controls non-intuitive and note that aftermarket support, while better than earlier AUG generations, still lags behind AR-format rifles.