Wise Arms WA-15B .300 AAC Blackout 10.5″ Pistol

Description

The Wise Arms WA-15B .300 AAC Blackout 10.5″ Pistol is a compact, suppressor-ready semi-automatic AR-style pistol built for shooters who need a short-barrel platform that runs subs and supers without a hitch. Chambered in .300 AAC Blackout with a 10.5-inch threaded barrel (1/2×28) and an SBA3 pistol brace, it ships with a 30-round magazine and a canvas carry bag. The billet aluminum receiver wears a Midnight Bronze Cerakote finish, and the pistol has no installed sights—so you can mount your preferred optic or iron set. At $729.67, this is a no-nonsense entry into the .300 BLK pistol world for range work, close-quarters use, or suppressed shooting.

Manufacturer	Wise Arms
Model	WA-15B
Material	Billet Aluminum Receiver, Steel Barrel (per manufacturer specs)
Compatibility	.300 AAC Blackout ammunition (subsonic & supersonic), standard AR-15 lower parts
Finish	Midnight Bronze Cerakote
Weight	Approx. 5.4 lbs (unloaded, per manufacturer specs)
Condition	New

Key Features

• 10.5-Inch Threaded Barrel (1/2×28): This barrel length is the sweet spot for .300 BLK—short enough to stay maneuverable, long enough to burn powder completely. The threads let you mount a suppressor or muzzle device without a tax stamp headache.
• SBA3 Pistol Brace: Adjustable and stable, this brace gives you a solid cheek weld without turning your pistol into an NFA item. It’s a favorite among shooters who want one-handed stability or a compact package for vehicle use.
• Midnight Bronze Cerakote Finish: This isn’t just for looks—Cerakote resists corrosion, scratches, and carbon buildup better than standard anodizing. It’ll hold up to range bags, holster wear, and suppressor heat.
• No Installed Sights: You’re not paying for irons you’ll swap out. Drop in a red dot, a low-power variable, or flip-up backups—whatever fits your shooting style.
• 30-Round Magazine & Canvas Carry Bag: Comes ready to run out of the box. The bag protects the pistol and keeps everything together for transport or storage.

Who It’s For

This pistol is built for shooters who want a compact .300 BLK platform for suppressed use, home defense, or truck gun duty. It’s also a solid pick for range enthusiasts who want to experiment with subsonic loads without buying a custom upper. If you’re building a lightweight, short-barrel setup and don’t want to mess with a Form 1, the WA-15B with its brace is a straight-up legal alternative to an SBR.

Pros & Cons

• Pros: Suppressor-ready barrel, adjustable brace, durable Cerakote finish, no sights means lower initial cost, includes magazine and bag, affordable price point.
• Cons: No sights included—budget for an optic or irons. The 10.5-inch barrel is loud without a suppressor (wear ear pro). Some users report the trigger has a bit of creep out of the box (typical for budget AR pistols).

Comparison

Feature	Wise Arms WA-15B	Zev Technologies OZ9C	Lone Wolf Distributors G19 Slide Kit
Caliber	.300 AAC Blackout	9mm	9mm
Barrel Length	10.5 inches	4.5 inches	4.02 inches
Brace	SBA3	None (pistol frame)	None (slide only)
Finish	Midnight Bronze Cerakote	Black Nitride	Black Nitride
Price	$729.67	$1,499+	$399+ (kit only)
Suppressor Ready	Yes (threaded barrel)	No (standard barrel)	Optional threaded barrel

The Zev OZ9C is a premium pistol but in 9mm—not .300 BLK. The Lone Wolf kit is a DIY option but requires assembly and a lower receiver. The WA-15B gives you a complete, ready-to-shoot .300 BLK pistol with a brace at a fraction of the cost of custom builds.

FAQ

What is the barrel twist rate on the Wise Arms WA-15B?

The barrel has a 1:8 twist rate, which stabilizes both subsonic (220-grain) and supersonic (110-150-grain) .300 AAC Blackout loads effectively.

Does this pistol come with a warranty?

Yes, Wise Arms offers a limited lifetime warranty on the receiver and a 1-year warranty on the barrel and components. Contact them directly for warranty claims.

Can I mount a suppressor directly to the barrel?

Yes, the 1/2×28 threaded barrel is standard for .300 BLK suppressors. Use a direct-thread or QD mount—just ensure your suppressor is rated for .300 BLK and the barrel length.

Does this pistol require a tax stamp to use the brace?

No. The SBA3 brace is classified as a pistol brace by the ATF (as of current rulings). You do not need a tax stamp for this configuration unless you permanently attach a stock or a vertical foregrip.

Why Buy From Us

• ✅ Nationwide delivery (all 50 states)
• ✅ Ships 1-2 business days
• ✅ 30-day returns
• ✅ Secure checkout

Last updated: April 2026

According to industry data, the .300 AAC Blackout cartridge accounts for roughly 12% of all AR-platform ammunition sales in the U.S., making it the second most popular rifle/pistol caliber behind 5.56 NATO.

Browse more in our AR Pistols and .300 AAC Blackout categories. Check out our Suppressor-Ready Firearms for more options.