AR-15/M16 C4 CARBINE CUTOUT RAIL SYSTEM
Two-piece, four-rail handguard installs easily and gives flattop receivers a continuous 12 o’clock rail. Clamps directly to standard barrel nut and features T-marks for proper optic and accessory remounting reference. Machined aluminum construction combines strength with light weight. Carbine Cutout model extends rails ¾" around sides of front sight base on carbine-length gas systems.