VISM 1913 Picatinny Ergonomic Angled Foregrip w/Storage Black. Textured ergonomic design with a finger groove for enhancing weapon control.Allows for a more comfortable angled grip for the support hand.Storage compartment with a latched trap door for batteries and cleaning supplies.Made of high quality polymer. Specifications for VISM 1913 Picatinny Ergonomic Angled Foregrip w/Storage: Manufacturer: VISM Color: Black Package Contents: VISM 1913 Picatinny Ergonomic Angled Foregrip w/Storage VISM VG049: 1913 Picatinny Ergonomic Angled Foregrip w/Storage Black