The Steyr Arms AUG A3 M2 is a semi-automatic bullpup rifle chambered in .300 AAC Blackout with a 16-inch barrel. This configuration comes in OD Green with a NATO stock and accepts standard AR-pattern magazines. Capacity is 30+1 rounds. 
 

Key Specifications 

• Brand: Steyr Arms 
• Model: AUG A3 M2 
• Caliber: .300 AAC Blackout 
• Action: Semi Auto 
• Capacity: 30+1 rounds 
• Barrel Length: 16 in 
• Color/Finish: OD Green 
   

Detailed Features 

• Bullpup configuration with 16-inch barrel in a compact overall length 
• NATO stock variant that accepts AR-pattern magazines 
• OD Green finish 
• Chambered in .300 AAC Blackout 
• 30-round capacity with standard AR mags

AUG A3 M2 owners in .300 Blackout tend to come from one of two places: existing AUG fans who want a suppressor-friendly caliber, or .300 Blackout shooters drawn to the bullpup layout. The combination works well, since the 16-inch barrel in a bullpup envelope keeps the package short while staying above the NFA threshold for rifles.

The AR-magazine compatibility on the M2 variant is the feature that most owners highlight first. Earlier AUG mags were proprietary and expensive, so the ability to run standard AR .300 Blackout mags removes a real friction point. The NATO stock is heavier than the folding variant but the AR-mag feed is worth the trade for most buyers.

The trigger on the AUG has a long pull that splits opinions. Shooters coming from traditional semi-auto rifles notice it immediately; those who put rounds through it tend to adapt, but it remains the most common criticism of the platform. The AUG A3 M2 holds its value well and Steyr's quality control is consistently reported as clean.