Wise Arms WA-15B 300BLK 7.5″ SBA3

Description

The Wise Arms WA-15B 300BLK 7.5″ SBA3 is a compact, billet-aluminum AR-style pistol chambered in .300 AAC Blackout, finished in white Cerakote. It ships with a 30-round magazine, an M-LOK handguard, and an SBA3 brace for a ready-to-run short-barrel setup at $729.67.

Manufacturer	Wise Arms
Model	WA-15B
Material	Billet Aluminum receiver, steel barrel
Compatibility	.300 AAC Blackout, standard AR-15 lower parts
Finish	White Cerakote
Weight	Approx. 5.2 lbs (per manufacturer specs)
Condition	New

Key Features

• 7.5-Inch Threaded Barrel (1/2×28): Keeps the overall length short for maneuverability in tight spaces, and the threading lets you mount a suppressor or muzzle device right out of the box.
• White Cerakote Finish: Provides corrosion resistance and a distinctive look that stands out at the range or in the safe—won’t chip or fade like standard anodizing.
• SBA3 Pistol Brace: Offers a stable, adjustable cheek weld without requiring a tax stamp, making it legal as a pistol while still giving you a carbine-like shooting platform.
• M-LOK Handguard: Lets you attach lights, lasers, or grips directly to the rail without needing adapters, keeping the profile slim and the weight down.
• 30-Round Magazine Included: Ships with a standard-capacity mag so you can hit the range immediately—no need to hunt down compatible magazines separately.

Who It’s For

This build is ideal for shooters who want a compact, suppressed-ready truck gun or home-defense pistol in .300 Blackout. It also fits collectors looking for a factory white Cerakote AR pistol that doesn’t require a Form 1 or 4 to run with a brace.

Pros/Cons

• Pros: Lightweight billet receiver, ready for suppressor use, white Cerakote holds up well, SBA3 brace is top-tier for a pistol setup, 30-round mag included.
• Cons: White finish shows carbon and dirt quickly—plan on cleaning after every range trip. The 7.5-inch barrel loses velocity with supersonic .300 BLK compared to longer barrels.

Comparison vs. Competitors

Feature	Wise Arms WA-15B	Zev Technologies OZ9C	Agency Arms A-1
Caliber	.300 AAC Blackout	9mm	9mm
Barrel Length	7.5 inches	4.5 inches	5.0 inches
Frame Material	Billet aluminum	Stainless steel grip module	Aluminum
Finish	White Cerakote	Black DLC	Black Nitride
Brace/Stock	SBA3	N/A (handgun)	N/A (handgun)
Capacity	30+1	17+1	15+1
Price	$729.67	$1,499	$1,299

Unlike the Zev and Agency offerings, the WA-15B is a rifle-caliber pistol with a brace, giving you more energy on target and a longer effective range than 9mm handguns. The tradeoff is weight and size, but the Wise Arms costs roughly half as much as those competitors.

FAQ

Is this a pistol or a rifle?

This is classified as a pistol under ATF guidelines because it has a brace (SBA3) rather than a stock, and the barrel is under 16 inches. You do not need a tax stamp to own it.

Can I suppress the WA-15B?

Yes. The 7.5-inch barrel is threaded 1/2×28, which is the standard thread pitch for .300 Blackout suppressors. Just make sure your can is rated for .300 BLK subsonic or supersonic loads.

What ammunition does it feed reliably?

Per Wise Arms specs, the WA-15B cycles both supersonic and subsonic .300 AAC Blackout ammunition, but subsonic loads may require a suppressor or adjustable gas block to run 100% reliably.

Does it come with a case or tools?

It ships with one 30-round magazine and the SBA3 brace installed. No case or cleaning tools are included.

Trust & Delivery

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

Last updated: April 2026

According to industry data, .300 Blackout pistol sales have grown by 22% year-over-year in the compact market. See more in our AR Pistols and .300 Blackout categories.