Ergo

The Ergo Z Rail is a two piece handguard engineered to provide shooters with an easily installed advantage on their carbine length AR/M4 weapons systems. It is ideal for shooters who prefer a thin profile, lightweight, less permanent installation. Made of 6061-T6 hard matte black anodized aluminum, the Ergo Z Rail requires no modification and is compatible with Adams Arms and similar piston systems. It weighs 9.1 ounces and comes with Ergo LowPro rail covers.