Slim-profile compact rail system with extended top rail to allow mounting of optics and accessories. - Top rail is in line with the upper receiver rail and extends back over the delta ring to allow mounting of optics across the entire top of weapon. - Issued to Israeli Special Forces Duvdevan and Yamam. - The NFR rail system firmly locks to the barrel nut so mounted optics retain zero. - 6 long. - Drop-in installation. - CNC machined hardcoated black anodized aviation-grade 6061 T6 aluminum.
Determined at checkout.