Instantly convert your favorite MOE, Masada, or ACR handguard to be accessory ready with these easy to install rails. Features: Full metal construction Instantly add 2 Modular Rails to your MOE / Masada / ACR handguard Allows attachment of grips, lights and lasers to your MOE handguard Increases the tactical look and performance of your MOE handguard and rifle Compatible with M-Lok system PTS (Airsoft Version) or Magpul (Real) without the heat-shield