The Alexander Arms PHI50ST Highlander 50 Beowulf 7+1 12″ Black Fluted Threaded Barrel, Black Anodized Picatinny Rail Receiver, SB Tactical SBA3 Brace, Black Ergo Grip brings proven stopping power to a compact platform. Built for shooters who want serious caliber performance without the weight of a full-size rifle, this Highlander model chambers the hard-hitting .50 Beowulf cartridge. It comes ready to run with a straight-fluted threaded barrel, an SB Tactical SBA3 brace, and two magazines included.
| Manufacturer | Alexander Arms |
|---|---|
| Model | PHI50ST Highlander |
| Caliber | .50 Beowulf |
| Barrel Length | 12″ |
| Barrel Profile | Straight Fluted, Threaded (5/8×24 per manufacturer specs) |
| Receiver | Black Anodized Picatinny Rail Upper / Forged Lower |
| Brace | SB Tactical SBA3 |
| Grip | Black Ergo Grip |
| Capacity | 7+1 |
| Handguard | TCE Alexander Arms Branded |
| Weight | Approx. 6.5 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- 12″ Straight Fluted Barrel — Why it matters: The fluting reduces weight and helps dissipate heat faster, keeping your shots consistent during range sessions or training drills. The 12″ length keeps the package compact while still delivering the .50 Beowulf’s full energy.
- Threaded Muzzle (5/8×24) — Why it matters: You can easily attach a muzzle brake, compensator, or suppressor. The threads are protected by a thread protector when not in use, so the crown stays safe.
- SB Tactical SBA3 Brace — Why it matters: This adjustable brace gives you a stable shooting platform without the need for a tax stamp. It’s easy to adjust for different shooters, making it great for family range trips.
- Black Ergo Grip — Why it matters: The Ergo grip fills your hand naturally and reduces fatigue during longer shooting sessions. Its texture provides a secure hold, even with gloves or wet hands.
- Two Magazines Included — Why it matters: You get a spare mag right out of the box. That means less time reloading and more time focusing on fundamentals with your family.
Who It’s For
This Highlander is built for the shooter who wants big bore performance in a compact, easy-to-handle package. It’s ideal for home defense, truck guns, or anyone looking to step up from 5.56 to a round with serious authority. The adjustable brace and ergonomic grip make it suitable for shooters of different sizes, including newer shooters who are ready to move up to a larger caliber.
Pros & Cons
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Comparison
| Feature | Alexander Arms PHI50ST Highlander | Zev Technologies OZ9C | Agency Arms AOS Glock 19 |
|---|---|---|---|
| Caliber | .50 Beowulf | 9mm | 9mm |
| Barrel Length | 12″ | 4.5″ | 4.02″ |
| Capacity | 7+1 | 15+1 | 15+1 |
| Brace | SB Tactical SBA3 | None (pistol) | None (pistol) |
| Weight | ~6.5 lbs | ~1.8 lbs | ~1.5 lbs |
| Best For | Big bore power in compact platform | Competition / concealed carry | Custom carry / duty use |
FAQ
What is the barrel twist rate on the Alexander Arms PHI50ST Highlander?
Per Alexander Arms specs, the 12″ barrel has a 1:18 twist rate, optimized for stabilizing .50 Beowulf bullets.
Does this model come with a muzzle device?
It includes a thread protector installed. The barrel is threaded 5/8×24, so you can add your own brake or suppressor.
Can I use standard AR-15 magazines with this?
No — the .50 Beowulf requires specific magazines. Two are included with the Highlander, and additional .50 Beowulf magazines are available separately.
Is the SB Tactical SBA3 brace adjustable?
Yes, it adjusts to multiple positions like a standard carbine stock, letting you tailor the length of pull for different shooters.
What is the overall length with the brace collapsed?
Approximately 26″ overall with the brace fully collapsed, making it easy to store or transport.
Ready to Add This to Your Collection?
Get the Alexander Arms PHI50ST Highlander 50 Beowulf 7+1 12″ Black Fluted Threaded Barrel, Black Anodized Picatinny Rail Receiver, SB Tactical SBA3 Brace, Black Ergo Grip and experience big bore power in a compact package. Browse more AK Rifles or check out our .50 Beowulf collection for ammo and accessories.
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Last updated: April 2026
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This Alexander Arms PHI50ST Highlander 50 Beowulf 7+1 12″ Black Fluted Threaded Barrel, Black Anodized Picatinny Rail Receiver, SB Tactical SBA3 Brace, Black Ergo Grip is ideal for shooters looking to buy guns online with confidence. Built with precision engineering and tested performance, it’s a top-tier choice whether you're looking for home defense, sport shooting, or a trusted everyday carry.
Why Choose the Alexander Arms PHI50ST Highlander 50 Beowulf 7+1 12″ Black Fluted Threaded Barrel, Black Anodized Picatinny Rail Receiver, SB Tactical SBA3 Brace, Black Ergo Grip?
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