F5-ACR Gen 3 Cyberarm Light Brace for Springfield Armory Kuna – Hosted by F5 Mfg F5-ACR Gen 3 Chassis (included)
Ultra-Lightweight Pistol Stabilizing Brace – 95.75 Grams – F5-ACR Gen 3 Chassis Integration
The F5-ACR Cyberarm Light Brace, hosted by the F5 Mfg F5-ACR Gen 3 Chassis, is the ultimate ultra-lightweight upgrade engineered specifically for the Springfield Armory Kuna 9mm PDW platform. This precision variant attaches seamlessly through the Gen 3 F5-ACR Chassis, reducing weight to just 95.75 grams—nearly half the standard 179.50 gram model—while delivering superior portability, minimized fatigue, and exceptional agility alongside the Kuna’s roller-delayed blowback system and compact folding design.
Precision CNC-machined entirely by F5 Mfg from solid billet 6061 aluminum, the Cyberarm Light Brace utilizes an advanced material-optimized skeletonized design. Strategic removal of unnecessary material achieves this feather-light profile without compromising structural integrity—making it one of the strongest components on your Kuna. Hosted securely by the F5 Mfg F5-ACR Gen 3 Chassis—with its fully adjustable cheek piece, bufferless folding capability, and rock-solid lockup—the brace forms a rigid, perfectly balanced, and highly integrated assembly optimized for dynamic shooting, home defense, and tactical use.
This ultra-light pistol stabilizing brace (NOT a rifle stock) retains the signature Cyberarm stabilizing brace attachment, providing secure ergonomic forearm support and compliance. When hosted by the F5-ACR Gen 3 Chassis on the Kuna platform, it preserves a compact, folding-capable footprint ideal for modern PDW builds.
Key Features & Benefits
- Pistol stabilizing brace – NOT a rifle stock – ATF-compliant for Springfield Armory Kuna pistol configurations
- Ultra-lightweight at 95.75 grams for superior maneuverability and minimized overall firearm weight
- Hosted by F5 Mfg F5-ACR Gen 3 Chassis for seamless, rigid integration with adjustable cheek piece and folding performance
- CNC-machined billet 6061 aluminum construction with advanced skeletonization for optimal strength-to-weight ratio
- Cyberarm brace attachment delivers reliable ergonomic forearm stabilization
- Material-optimized design engineered to be one of the strongest parts on your Kuna
- Proudly Made in the USA
Why the Cyberarm Light Brace Hosted by F5-ACR Gen 3 Chassis Matters
Every gram counts in compact 9mm PDWs like the Springfield Armory Kuna. By hosting the Cyberarm Light Brace through the proven F5 Mfg F5-ACR Gen 3 Chassis, this setup dramatically cuts weight while enhancing rigidity, balance, and ergonomics with the Gen 3’s adjustable cheek riser. Combined with the Kuna’s low-recoil roller-delayed action and high-capacity magazines, it creates the ultimate lightweight personal defense weapon—perfect for red dot, magnifier, suppressed, or everyday carry scenarios.
Important Compliance Notice
This product is a pistol stabilizing brace, not a rifle stock. Always ensure your Springfield Armory Kuna configuration complies with all applicable federal, state, and local regulations.
