Steyr AUG/A3 M1 Extended Rail 5.56 NATO Bullpup, 16 in. Barrel, White Stock, Mannox Finish, 30+1
This Steyr AUG/A3 M1 in the Extended Rail configuration stands out with its white polymer bullpup stock, factory Mannox finish, and U.S. assembly in Bessemer, Alabama. It features a 16-inch threaded, quick-change barrel and an extended full-length Picatinny top rail with short side rail segments. The rifle is in excellent overall condition with a clean, mirror-bright bore.
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: Minor surface scratches are present on the metal in a few small areas. The rifle remains clean overall.
What’s Included
- Steyr factory cardboard box with matching label
- Steyr AUG/A3 M1 owner's manual
- 1x 30-round AUG-pattern polymer magazine with waffle texture
The Extended Rail configuration provides an extended full-length Picatinny top rail along with short side rail segments. This layout offers broad mounting surfaces for accessories while retaining the AUG/A3 M1’s compact bullpup profile.
The operating system is a gas-operated, short-stroke piston with a rotating bolt and an adjustable gas plug/regulator. Controls include a cross-bolt safety and a left-side, folding, non-reciprocating charging handle.
The rifle uses a steel, quick-change barrel system with a 16-inch barrel on this example. The threaded muzzle is fitted with a birdcage-style flash hider.
The white polymer stock integrates the pistol grip and a fixed vertical foregrip. Length of pull is 14.5 inches. The AUG-pattern detachable magazine system feeds 5.56mm NATO and this configuration offers a 30+1 capacity.
Finished in Steyr’s factory Mannox, this AUG/A3 M1 is U.S.-assembled by Steyr Arms in Bessemer, Alabama, combining the platform’s proven design with domestic assembly.



