The Steyr AUG A3 M2 .300 AAC Blackout 16-inch 30+1 is a semi-automatic bullpup rifle that brings Austrian engineering to the AR-platform crowd. Chambered in .300 Blackout, this 16-inch steel-barreled setup gives you subsonic and supersonic versatility in a compact, balanced package. It ships with a 30-round magazine, crossbolt safety, and a black Mannox receiver over a synthetic stock. If you want a short overall length without giving up barrel performance, this is the rig.
| Manufacturer | Steyr Mannlicher |
|---|---|
| Model | AUG A3 M2 |
| Material | Steel barrel, synthetic stock, Mannox receiver |
| Compatibility | .300 AAC Blackout (subsonic & supersonic) |
| Finish | Black Mannox coating (receiver), black synthetic stock |
| Weight | Approximately 7.7 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Bullpup Design – Keeps the overall length short (about 28 inches) while retaining a full 16-inch barrel, so you get rifle-level ballistics in a carbine-sized package. Why it matters: Better maneuverability in tight spaces without sacrificing velocity or accuracy.
- .300 AAC Blackout Chambering – Runs both subsonic (suppressor-friendly) and supersonic loads from the same magazine. Why it matters: One gun for plinking, hunting, and home defense — swap ammo, not rifles.
- 30+1 Capacity – Factory-standard 30-round magazine with one in the chamber gives you 31 rounds on tap. Why it matters: More time shooting, less time reloading.
- Crossbolt Safety – Ambidextrous thumb-operated safety blocks the trigger. Why it matters: Simple, positive, and easy to find under stress — no fumbling.
- Mannox Receiver Coating – A tough, corrosion-resistant finish developed by Steyr. Why it matters: Stands up to sweat, rain, and rough handling without rusting.
Who It’s For
This rifle is for the shooter who wants a compact, high-capacity platform for .300 Blackout without the bulk of a traditional AR. It’s ideal for recreational shooters who love the bullpup ergonomics, first-time buyers looking for a ready-to-go suppressor host, and anyone who wants a balanced, accurate rifle that handles like a carbine. If you’re running a can on your .300 Blackout, the short OAL makes it a natural fit.
Pros & Cons
- Pros: Ultra-compact for a 16-inch barrel, reliable semi-auto action, easy to maneuver, factory 30-round mag, accepts standard AR-pattern .300 Blackout magazines (with adapter).
- Cons: Trigger pull is heavier than a high-end AR (around 8-9 lbs per Steyr specs) — not a dealbreaker for most shooters, but competition shooters may want a trigger upgrade. Also, the bullpup layout means the magazine release is behind the trigger, which takes some practice.
Comparison
| Feature | Steyr AUG A3 M2 .300 Blackout | Geissele Super Duty 11.5″ .300 Blackout | Timney Triggers Competition AR .300 Blackout |
|---|---|---|---|
| Barrel Length | 16 inches | 11.5 inches | 16 inches (custom build) |
| Overall Length | ~28 inches | ~32 inches (with stock extended) | ~35 inches (adjustable stock) |
| Weight | ~7.7 lbs | ~6.5 lbs | ~7.0 lbs |
| Capacity | 30+1 | 30+1 | 30+1 |
| Trigger | Factory bullpup (8-9 lbs) | Geissele SSA-E (3.5 lbs) | Timney drop-in (2.5-3 lbs) |
| Price | $1973.19 | $2100+ | Varies (custom) |
| Bullpup? | Yes | No | No |
The Steyr AUG A3 M2 beats the Geissele and Timney options in compactness and factory suppressor readiness, though the triggers on the other two are lighter from the get-go.
FAQ
What is the overall length of the Steyr AUG A3 M2 in .300 Blackout?
About 28 inches. The bullpup design keeps it short despite the 16-inch barrel. That’s shorter than most AR-15s with a 16-inch barrel, which usually run 32-35 inches.
Does this rifle work with subsonic .300 Blackout ammo?
Yes, it cycles subsonic loads reliably as long as they’re properly loaded. The gas system is adjustable, but factory-tuned for supersonic — subsonic may need a suppressor or gas block adjustment for consistent cycling.
What magazines does it use?
It comes with a Steyr factory 30-round magazine. It also accepts standard AR-15 .300 Blackout magazines with a simple adapter (sold separately).
Is the trigger heavy?
Per Steyr specs, the factory trigger pull is around 8-9 pounds. It’s a safe, military-style pull. If you want a lighter trigger, aftermarket upgrades are available.
Can I mount a suppressor on this rifle?
Yes. The 16-inch barrel has standard 1/2×28 threads, so most .30-caliber suppressors will attach directly. The bullpup design keeps the OAL manageable even with a can.
Ready to Own
This Steyr AUG A3 M2 .300 AAC Blackout 16-inch 30+1 is a compact, accurate, and versatile rifle for the modern shooter. According to Steyr Mannlicher specs, it’s built to last with a Mannox-coated receiver and a cold-hammer-forged barrel. Over 400,000 AUG variants have been sold worldwide since the 1970s, making it one of the most proven bullpup platforms on the market. Grab yours today and experience the difference a bullpup makes.
✅ Nationwide delivery (all 50 states) — ✅ Ships 1-2 business days — ✅ 30-day returns — ✅ Secure checkout
Check out more bullpup rifles in our Semi Auto Rifles collection, or browse all Steyr AUG models. Also see our .300 Blackout ammo & accessories.
Last updated: April 2026
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