KAC Knights Armament Free Float RAS Rail Kit – 9.35″


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SKU: 20214 UPC: 819064012177

Product Description

The KAC Medium Free Float RAS (Rail Adapter System) features full-length mil-spec M1913 Picatinny rails at the 12-, 3-, 6-, and 9 o’clock positions, making it compatible with any number of rail-mounted tactical accessories. The rail free-floats the barrel, allowing for consistent barrel harmonics upon firing, and thus increased accuracy potential. Includes three KAC 11 Rib Rail Panels.

Rifle Requirements: This Free Float RAS requires that the rifle have a carbine or mid-length gas system and a low-profile gas block. Disassembly of the rifle’s gas system and removal of the factory barrel nut will be necessary. This forend uses a proprietary barrel nut that may be installed using a standard AR-15 armorer’s barrel nut wrench (sold separately). For AR-15/SR-15 based platforms only; not compatible with SR-25 variants. Installation instructions are included.


  • Weight: 14.7oz
  • Length: 9.35″
  • Free Float: Yes
  • Material: Aluminum
  • Finish: Black Anodizing




Technical Information

Caliber 5.56 NATO / .223 Remington
Color / Pattern
Finish Anodized
Mounting Platform
Material Aluminum
Firearm Compatibility

Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit www.P65Warnings.ca.gov