Upgrade your AR-15 with the legendary Knight’s Armament Company FF RAS 5 10.75″ Free Float Rail Adapter System, engineered for precision and reliability in demanding tactical scenarios. This 5.56-compatible quad rail handguard delivers unmatched modularity and stability, allowing seamless attachment of optics, lights, and grips while maintaining a free-floating design that enhances accuracy by isolating the barrel from external pressures. Ideal for close-quarters battle (CQB) setups on 11.5″ barrels, it’s the choice of elite forces like the U.S. Secret Service for its robust construction and battle-proven performance.

Key Features

• Quad Picatinny Rails: Full-length Mil-Spec M1913 rails at 12, 3, 6, and 9 o’clock positions for versatile accessory mounting without compromising grip comfort.
• Free-Floating Design: Eliminates barrel contact to minimize harmonics and vibration, boosting shot-to-shot consistency and group tightness.
• Secure Indexing Tab: Precision-machined tab locks into notched upper receivers for rock-solid alignment and zero retention under recoil.
• Kit Includes: Barrel nut and installation tool for straightforward assembly on compatible KAC uppers.
• Anodized Black Finish: Corrosion-resistant Type III hard anodizing ensures longevity in harsh environments.

Technical Specifications

• Length: 10.75 inches – Perfect for compact SBR or pistol builds.
• Weight: 15 oz – Lightweight yet durable aluminum construction balances maneuverability and strength.
• Rail System: Quad rail with continuous top rail for co-witnessing sights.
• Profile: Free float for optimal accuracy.
• Compatibility: Requires KAC notched upper receiver; optimized for SR-15/SR-16 platforms.

Why Choose the KAC FF RAS 5?

In a market flooded with generic rails, the FF RAS 5 stands out by solving common tactical pain points like accessory slippage, accuracy degradation, and installation hassles. Its free-float technology addresses barrel whip issues that plague drop-in guards, delivering tighter groups and faster follow-ups. For shooters frustrated with lightweight rails that flex under load, this handguard’s military-grade build provides unwavering support for heavy optics or lasers. Whether you’re customizing a duty rifle or building a precision CQB weapon, it transforms your setup into a reliable extension of your skills, ensuring confidence in high-stakes situations.

Elevate your firearm’s potential today – secure the Knight’s Armament FF RAS 5 and experience the difference premium engineering makes in your next range session or operation.

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