The Fab Defense T-FL 7 Position Vertically Folding Foregrip enhances natural fighting stance and grip on your weapon. The T-FL quickly transitions from a horizontal grip to a vertical grip and five other positions in between. Attaches via a 1913 Picatinny rail interface and secured with two bolts. Made with a fiberglass reinforced polymer composite material. The bottom of the grip has a waterproof storage compartment.