Steyr AUG A3 M2 223 Rem/5.56 NATO 16.37in 30rd Green

The Steyr AUG A3 M2 223 Rem/5.56 NATO 16.37in 30rd Green is a semi-automatic bullpup that delivers a full-length barrel in a compact, maneuverable package. It uses a short-stroke gas piston system with dual adjustment settings, ensuring reliable cycling across various ammunition types. The OD green synthetic stock and extended Picatinny rail give you a stable platform for optics and accessories.

Manufacturer	Steyr Mannlicher
Model	AUG A3 M2
Material	Synthetic polymer stock, steel barrel and receiver
Compatibility	223 Rem/5.56 NATO ammunition, AR-15 pattern magazines (with adapter, not included)
Finish	OD Green synthetic stock, black anodized metal components
Weight	7.9 lbs (per manufacturer specs)
Condition	New

Key Features

• Bullpup configuration: The action sits behind the trigger, giving you a 16.37-inch barrel in a 28.1-inch overall length. This means you get rifle velocity and accuracy in a package that handles like a carbine.
• Short-stroke gas piston system: A dual-adjustment gas plug lets you tune the rifle for suppressed or unsuppressed fire. This reduces fouling in the receiver and keeps the action running clean.
• Extended Picatinny rail: The top rail runs the full length of the receiver, providing ample real estate for magnified optics, red dots, or clip-on night vision. No proprietary mounting—use standard rings or QD mounts.
• Integrated carry handle with backup sights: The carry handle doubles as a rear aperture sight and front post. You have iron sights ready out of the box, no extra purchase needed.
• 30-round detachable magazine: Ships with one Steyr factory magazine. The magazine release is ambidextrous, and the bolt release is located near the trigger guard for fast reloads.

Who It’s For

This rifle is for the shooter who wants a compact platform without sacrificing barrel length. If you run a suppressor, the short overall length keeps the package balanced. If you shoot PRS or tactical matches, the bullpup design reduces muzzle rise and makes transitions between positions faster. It’s also for the collector who appreciates Austrian engineering—Steyr has been making the AUG since 1977, and the A3 M2 is the latest evolution.

Pros/Cons

• Pro: Compact overall length with a full-size barrel—the 16.37-inch barrel delivers 5.56 velocities comparable to a 16-inch AR-15, but in a package 8 inches shorter.
• Pro: Reliable short-stroke gas system. Per Steyr specs, the dual-adjustment gas plug allows the rifle to cycle with both standard and suppressed loads without over-gassing.
• Con: Trigger pull is heavier than aftermarket AR triggers—factory pull averages 8-9 lbs. This can be addressed with aftermarket trigger packs, but it’s not a match-grade trigger out of the box.
• Con: Magazine compatibility is limited to Steyr factory magazines unless you buy an AR-15 adapter (sold separately). This adds cost if you already have a stack of AR mags.

Comparison: Steyr AUG A3 M2 vs. Zev Technologies OZ9 vs. Geissele Super Duty

Spec	Steyr AUG A3 M2	Zev Technologies OZ9	Geissele Super Duty
Action	Bullpup, semi-auto	Traditional, semi-auto	Traditional, semi-auto
Barrel Length	16.37 inches	16 inches	16 inches
Overall Length	28.1 inches	32.5 inches	33.5 inches
Weight	7.9 lbs	7.5 lbs	6.9 lbs
Gas System	Short-stroke piston	Direct impingement	Direct impingement
Trigger	8-9 lbs factory	4.5 lbs match	4.5 lbs Geissele
Price	$1,973.19	$2,199.99	$1,899.99

The AUG A3 M2 is 4-5 inches shorter than both competitors, making it ideal for tight spaces or suppressor use. The Zev OZ9 offers a better trigger out of the box, and the Geissele Super Duty is lighter. But neither gives you the bullpup advantage of a compact OAL with a full-length barrel.

FAQ

Does the Steyr AUG A3 M2 come with a manual or warranty?

Yes, it ships with a user manual and a limited lifetime warranty from Steyr Mannlicher. The warranty covers defects in materials and workmanship.

Can I use AR-15 magazines in the AUG A3 M2?

Not directly. The AUG uses proprietary Steyr magazines. You can buy an AR-15 magazine adapter (sold separately) that allows the use of standard AR-15 pattern magazines, but it’s not included.

Is the barrel on the AUG A3 M2 chrome-lined?

Yes, per Steyr specs, the barrel is cold hammer-forged and chrome-lined for durability and corrosion resistance. It’s rated for sustained fire rates typical of semi-auto use.

What optics can I mount on the AUG A3 M2?

Any optic with a standard Picatinny mount. The extended rail allows for magnified scopes, red dots, or holographic sights. The rail is 20 MOA sloped from the factory to help with long-range elevation adjustments.

Does the AUG A3 M2 accept suppressors?

Yes, the barrel is threaded 1/2×28 TPI, which is standard for 5.56 muzzle devices. The dual-adjustment gas plug has a suppressed setting to reduce bolt velocity and gas blowback.

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Last updated: April 2026

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