Wise Arms WA-15B 300 Blackout 7.5″ Pistol with SBA3 Brace – Gray

The Wise Arms WA-15B in .300 AAC Blackout is a compact AR-style pistol built for close-quarters performance and suppressor-ready versatility. The 7.5-inch barrel keeps the platform tight and maneuverable, while the .300 BLK chambering delivers serious terminal performance whether running supersonic or subsonic loads. Equipped with the Sig Sauer SBA3 pistol brace and finished in gray, this is a purpose-built pistol for serious shooters.

Key Specifications

• Chambered in .300 AAC Blackout, optimized for both supersonic and subsonic ammunition.
• The barrel measures 7.5 inches, delivering a compact, close-quarters-ready profile.
• Features a 1-in-8 inch twist rate to stabilize a wide range of .300 BLK projectile weights.
• Ships with one 30-round magazine and supports a total capacity of 30+1.
• Fitted with the Sig Sauer SBA3 pistol stabilizing brace for enhanced one-handed control.
• Semi-automatic action cycles reliably from a direct-impingement AR-platform design.
• Finished in a gray color for a distinctive, professional aesthetic.
• Classified by the ATF as a pistol per federal guidelines.
• No sights included — optics-ready for your preferred red dot or magnified optic.

The WA-15B is the kind of compact .300 Blackout pistol that earns its place in any serious shooter’s collection. The short barrel and SBA3 brace make it effortlessly portable, while the 1-in-8 twist and 30+1 capacity mean you’re never undergunned. Add your preferred optic and suppressor, and this Wise Arms pistol transforms into one of the most capable close-range platforms available. If you’re building a versatile home-defense or range pistol around the .300 BLK cartridge, the WA-15B is a compelling starting point.