Centurion Arms
MK11 Mod 0 SR-25 10.7” Free Float Quad Rail
The Centurion Arms Rifle-Length Free Float Quad Rail is a premium AR-10 handguard engineered for accuracy, versatility, and functionality. Modeled after the original Knight’s Armament SR-25 MK11 Mod 0 FF RAS design, this rail system features full-length MIL-STD-1913 Picatinny rails at 12, 3, 6, and 9 o’clock for unlimited mounting options in a 10.7 inch length that will cover the gas block on a rifle length gas system barrel. The standard MK11 Mod 0 length rails can be found here
True Free-Float Design – No barrel contact for improved accuracy and consistent point of impact.
Full-Length Picatinny Rails – Continuous MIL-STD-1913 top rail and quad-rail configuration for optics, lasers, grips, and lights.
10.7” Rail - This extended version of the Centurion MK11 Mod 0 Rail will cover the gas block on a rifle length gas system.
Rifle-Length Gas System – Designed specifically for AR-10–style rifles with rifle-length gas systems.
Durable Construction – Built to military specifications for long-term performance.
This is not a drop-in rail. Installation requires:
What’s Included
1x Centurion MK11 MOD 0 SR25 10.7” Quad Rail Handguard
1x Proprietary Barrel Nut
3x Precision Alignment Pins
1x Specialized Rail Nut
Specifications
Installation Instructions can be found here
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