Steyr AUG A3 M2 NATO Stock 5.56mm Bullpup, 16-inch, Black — U.S.-Marked, AR-Mag Compatible
The Steyr AUG A3 M2 in NATO Stock configuration brings the iconic bullpup design together with AR-15/STANAG magazine compatibility. This U.S.-marked example from Steyr Arms, Inc. in Bessemer, Alabama features a 16-inch quick-change, threaded barrel with flash hider, an adjustable short-stroke gas piston system, and a full-length Picatinny top rail. It is clean, modern, and set up with practical features including a folding vertical foregrip and a left-side, non-reciprocating charging handle.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: There are minimal handling marks from prior use. Please refer to the photos for a closer look.
What’s Included
- Steyr AUG A3 M2 owner's manual
- 1 Magpul PMAG 30-round AR-15/STANAG-pattern magazine
This AUG A3 M2 is the NATO-stock variant that accepts common AR-15/STANAG magazines, expanding compatibility and simplifying logistics. It retains the proven AUG bullpup architecture with right-side ejection, an alloy receiver, and a durable black polymer stock with an integral pistol grip and trigger guard.
The 16-inch barrel is threaded and fitted with a flash hider, and uses Steyr's quick-detach/quick-change system with a locking collar. An adjustable gas regulator drives the short-stroke piston and rotating bolt, supporting reliable operation with a variety of loads. The 1:7 twist rate is optimized for 5.56mm NATO projectiles.
Controls are practical and familiar: a left-side, non-reciprocating charging handle, a cross-bolt safety, and a folding vertical foregrip that aids stability while maintaining the rifle’s compact balance. A rear-left sling loop is integrated into the stock for carry options.
For accessories, the rifle provides a full-length Picatinny top rail for optics and a left-side accessory rail for lights or other attachments. Capacity is 30+1 with the included magazine.
This rifle is marked "MADE IN USA" and "STEYR ARMS, INC BESSEMER, AL," highlighting its U.S. production. Fit and features align with the AUG's reputation for modularity, compact handling, and service-ready durability.

