Strike's GridLok Handguard is for your AR Platform. It features a quick detachable M-Lok handguard that utilizes a full modular colorways with integrated backup sights, built in Picatinny mounts, and a spring loaded detach lever for the quickest rail removal process ever. This package includes: handguard main housing; top rail; bottom rail; barrel nut shroud; set of tools; enhanched barrel nut; barrel nut tools.