Wise Arms WA-15B .300 Blackout 10.5" SBA3 Stabilizing Brace Rifle

The Wise Arms WA-15B .300 Blackout 10.5" SBA3 Stabilizing Brace Rifle is a precision short-barreled platform engineered for operators and shooters who demand compact firepower without sacrificing ballistic performance. Built on the proven AR-15 platform, this rifle bridges the gap between pistol-caliber carbines and full-power rifle systems, making it ideal for tactical applications, home defense, and close-quarters engagement scenarios. The 10.5-inch barrel paired with the SBA3 stabilizing brace creates a maneuverable package that excels in confined spaces while maintaining the ballistic advantages of intermediate rifle cartridges.

The .300 Blackout chambering was purpose-built for subsonic performance and suppressor compatibility, making this Wise Arms rifle a top choice for sound-signature-conscious operations. At 10.5 inches, the barrel optimizes velocity while keeping overall length at 26.5 inches—critical for vehicle operations and building clearance. The SBA3 stabilizing brace provides a legal, ergonomic shooting platform that enhances control and accuracy by allowing a secure wrist attachment, reducing felt recoil and muzzle rise compared to firing with arm bracing alone. The lightweight construction, at approximately 1 pound for the core assembly, ensures rapid target transitions and minimal shooter fatigue during extended engagements.

Law enforcement, military personnel, and civilian security professionals benefit most from this platform's versatility and reliability. The SBA3 brace design meets current ATF guidance for stabilizing braces on firearms under 26 inches, making it compliant for civilian ownership in most jurisdictions—verify your local and state regulations before purchase. This rifle accepts standard AR-15 components and accessories, enabling customization with optics mounts, handguards, and tactical attachments to match mission-specific requirements.