Knights Armament Company RAS MK12 Mod 1 AR-15 Free Float Black Quad Rail - 21318

KAC RAS MK12 Mod 1 Free Float Quad Rail

The Knights RAS AR-15 Quad Rail with aluminum construction; black anodized finish; 12” length; and 16.3 oz weight.

This KAC Free Float RAS (Rail Adapter System) now for sale at Mister Guns is the same rail used by the U.S. Military for their Mk12 Mod1 SPR rifles.

It comes featuring full length Mil-Spec M1913 Picatinny rails at the 12-, 3-, 6-, and 9 o’clock positions, and this makes it compatible with any number of rail-mounted tactical accessories. To allow for consistent barrel harmonics upon firing, and thus increase accuracy potential, the rail free floats the barrel.

The package 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.