Knight’s Armament SR-25 Free Float RAS, MK11 Mod 0


KAC PN 20362-1

The cheese grater of choice for MK11 Mod 0 clones!

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KAC PN 20362-1

The KAC SR-25 Free Float RAS (Rail Adapter System) was originally designed for the US military’s Mk11 Mod 0 rifles. It 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.

It is recommended that this SR-25 Free Float RAS be used with a rifle length gas system only due to potential interference issues if a gas block were to be run underneath the rail. The top rail has a cut-out in it that is meant to be a recess for a folded KAC Mk11 Push Button Front Sight (PN: KM20138, sold separately). 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 must be installed using a SR-25 RAS barrel nut wrench (PN: 10908, sold separately). Compatible with SR-25 or similar rifle variants only; not for use with AR-10’s.

Weight: 17.2oz
Length: 12.25″
Free Float: Yes
Material: Aluminum
Finish:Black Anodizing
NSN: 1005-01-452-6771

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