Knights Armament Company (KAC) RAS Long Free Float Handguard

MSRP: $417.45
Your Price: $396.58
(You save $20.87 )
Machined from aircraft grade aluminum
Stock Status:

Out of stock

Free Float Rifle RAS


The KAC Rifle Length 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 fore end 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: 16.3oz

Length: 12″

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit***

6 Reviews

  • 5

    Like alway bcm is the best

  • 5
    Quick and easy

    Notification was sent to me for this part and as soon as I got the email. Part was ready and shipped quick!

  • 5
    If its in stock, buy it

    Very hard to find, but when it comes in stock it is a definite buy. Extremely high quality and rock solid lock up

  • 5
    BRAVO comes through again!

    When it comes to fighting the good fight for our freedom Bravo comes through as always. Whether its a hard to find high end part delivered in short order or a simple accessory for a primary or secondary these guys do it right! KAC's assemblies are to notch and Bravo get them to you... nuff said

  • 5

    I have been looking for this hand guard for some time to build a SAM-R clone. The only place I ever found it was here at Bravo Company. The shipping was fast and cheap , great customer service and all of the goodies included in the box. The hand guard is from Knights so no need to expand on their already amazing reputation but I can not say enough great things about Bravo Company. I am sure this is the first of many experiences.

  • 5
    awesome rail

    This rail is top quality. Used on a spr build. Extrmely solid lock up. Perfect fit n finish.