BCM Vertical Forend Grip Fits AR RiflesMounted in forward angle increases rigidity of forearm, while providing more natural wrist angle when grabbing the vertical grip. Mounted in reverse angle to increase control when grabbing handguard and vertical grip. Flat sides give better yaw control to the shooter during firing and non firing manipulations. Aggressive texture and generous storage volume combined with modular design to allow improvements and adaptation in the future. Cross bolt