The NcSTAR Utility Vertical Foregrip securely mounts onto the 1913 MIL-STD Picatinny rail of a handguard. The storage compartment features a tight-sealing door for any objects you might need on the field. This foregrip helps improve maneuverability and provides better support and pointability. This grip is crafted from high-quality polymer and includes all of the mounting hardware.