Knight’s Armament Long Free Float RAS Rail
KAC PN 21318
Knight’s Free-Float RAS replaces the standard hand guards on the AR15. This is the handguard that is used on the SPR/A, SPR/B, and Naval Special Warfare Command (NSWC) SPR aka Mk12 Mod1 or special purpose rifle. This is also the rail used on the USMC SAM-R. The Low-Profile Gas Block may be required to replace the standard fixed iron sight. Installation requires removal of the barrel, flash suppressor and front sight/gas block. Picatinny rails on all four sides allow endless possible mounting solutions for accessories such as sling mounts, a bipod, vertical forearm grips, flashlights and more. The RAS comes with three 11 rib panels to help protect the rails from damage.
Overall length (including barrel nut): 12 1/4″
NSN: 1005-01-562-0913
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Jose Ortiz (verified owner) –
Absolutely the best customer service. Love Rooftop Defense!
Jeremy Duggin (verified owner) –
Absolutely a beast of a rail personnel favorite that I gave up on and finally got another after years of waiting
Charles Walker (verified owner) –
Everything I’d hoped it would be and more! One of those grail item pieces and nobody I’d trust more than Rooftop to get it from let alone have it.
Daniel Wolan –
Searched for over a year to find this. Was not disappointed! INCREDIBLE rail. Super clean and precise. Rooftop bringing the people what they want!