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Knight's Armament Company M4 RAS Forend Assembly w/ Three 11-Rib Panels

AR-15 Handguard

Out of stock

Knight's Armament Company M4 RAS Forend Assembly w/ Three 11-Rib Panels


The KAC M4 RAS (Rail Adapter System) was developed for use on the US military’s M4 Carbine, and with over 1 million rails issued to date, it is one of the most battle proven designs available for the AR-15 platform. This non-free float handguard is a simple-to-install, drop-in upgrade that features genuine Mil-Spec M1913 Picatinny Rails along its entire length. What sets the M4 RAS apart from other 2-piece quad rails on the market is that it securely locks to the rifle’s barrel nut via a clamp and screw arrangement, making it a very solid foundation upon which to mount tactical accessories. Includes three KAC 11 Rib Rail Panels.

Rifle Requirements: The M4 RAS is a drop-in replacement part for standard, 2-piece polymer, M4-type handguards. The rifle must have a carbine length gas system, delta ring assembly, fixed front sight/gas block, and round handguard end cap. Lighter barrel profiles work best (M4 or Government contours). Heavier barrel contours may require modification to the inside of the rail. For AR-15/SR-15 based platforms only; not compatible with SR-25 variants.


  • Weight: 8.9 oz
  • Length: 6.25″
  • Free Float: No
  • Material: Aluminum
  • Finish: Black Anodizing
More Information
SKU 98064
Product Type AR-15 Handguard
Manufacturer Knight’s Armament Company
Color Black
Rail Length 6.25"
Mount Picatinny

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