Description
The San Tan Tactical STT-15 5.56 7.5″ 30RD Black is a compact AR-platform pistol built for shooters who need a small, reliable package without giving up accuracy or controls. Chambered in .223 Rem/5.56 NATO, this billet receiver set uses 7075 T6 aerospace-grade aluminum for a rock-solid foundation. Fully ambidextrous controls let you run it strong-side or weak-side without missing a beat. At $1,260.42, it’s a serious tool for the daily carrier who expects gear to work every time.
San Tan Tactical STT-15 5.56 7.5″ 30RD Black – Specs
| Manufacturer | San Tan Tactical |
|---|---|
| Model | STT-15 |
| Material | 7075 T6 aluminum billet receivers, steel barrel |
| Compatibility | AR-15 lower and upper parts, standard AR magazines |
| Finish | Type III hard-coat anodized black |
| Weight | Approx. 5.2 lbs unloaded (per manufacturer specs) |
| Condition | New |
Key Features
- Billet 7075 T6 receivers – WHY IT MATTERS: This isn’t cast or forged; it’s machined from solid billet for tighter tolerances and less flex under heat or hard use.
- 7.5″ barrel with 1:7 twist – WHY IT MATTERS: Short enough to fit in a backpack or truck console, but fast twist stabilizes 55-77 grain rounds for consistent accuracy at practical distances.
- Full ambidextrous controls – WHY IT MATTERS: Safety selector, bolt catch, and magazine release all work for lefties or righties, so you don’t have to swap parts for your support hand.
- Type III hard-coat anodized finish – WHY IT MATTERS: Resists scratches, corrosion, and wear from daily carry or range sessions; keeps the gun looking clean without adding weight.
- 30-round magazine included – WHY IT MATTERS: Out of the box you’ve got standard capacity for training, competition, or defense without buying extra mags right away.
Who It’s For
This pistol is built for the EDC crowd who want an AR-platform that disappears under a jacket or in a pack. It’s for the left-handed shooter who’s tired of fighting right-side-only controls. It’s for the truck gunner who needs something compact that still reaches out to 100-150 yards with a red dot. If you carry daily and train monthly, the STT-15 fits your kit.
Pros & Cons
- Pro: Fully ambidextrous out of the box – no extra parts needed.
- Pro: Billet receivers with tight lockup reduce accuracy-robbing play.
- Con: 7.5″ barrel means significant muzzle blast and flash – you’ll want a linear comp or suppressor if shooting indoors.
Comparison: STT-15 vs. Zev Technologies OZ9 vs. Agency Arms AOM
| Feature | San Tan STT-15 | Zev OZ9 | Agency AOM |
|---|---|---|---|
| Caliber | 5.56 NATO | 9mm | 9mm |
| Barrel length | 7.5″ | 4.5″ | 5.0″ |
| Receiver material | 7075 T6 billet | 7075 T6 billet | 7075 T6 billet |
| Ambidextrous controls | Full (safety, bolt catch, mag release) | Partial (safety only) | Full (safety, slide stop, mag release) |
| Weight unloaded | 5.2 lbs | 1.8 lbs | 2.1 lbs |
| Price | $1,260.42 | $1,999.00 | $1,799.00 |
If you want a 5.56 pistol that’s shorter than a standard carbine, the STT-15 beats the OZ9 and AOM on caliber flexibility and price. The Zev and Agency are fine for 9mm duty, but they’re heavier on the wallet and don’t offer the same ballistic reach.
FAQ
What barrel twist rate does the San Tan Tactical STT-15 use?
The STT-15 comes with a 1:7 twist barrel. That’s standard for 5.56 NATO and stabilizes everything from 55-grain plinking ammo up to 77-grain match loads.
Is the San Tan Tactical STT-15 California compliant?
As configured with a 7.5″ barrel and 30-round magazine, this pistol is not CA compliant due to magazine capacity and overall length restrictions. Check your local laws before ordering.
Can I mount a suppressor on the 7.5″ barrel?
Yes, the barrel is threaded 1/2×28. You’ll need a direct-thread or QD mount suppressor. Keep in mind the short barrel produces more back pressure, so a flow-through can helps reliability.
Does the STT-15 come with a brace or stock?
No brace or stock is included. The pistol is sold as a complete upper and lower receiver set. You’ll need to add your own brace or buffer tube assembly per ATF guidelines.
Why Buy from Us
- ✓ Nationwide delivery (all 50 states)
- ✓ Ships 1-2 business days
- ✓ 30-day returns
- ✓ Secure checkout
Last updated: April 2026
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