FORTIS SHIFT VERTICAL GRIP (KEYMOD MOUNT)The PTS Fortis Shift Vertical Grip is a one piece billet design made from 6061 T6 aluminum. The skeletonized design makes this grip one of the lightest grips on the market. Even with its unique angled skeletonized design, the PTS Fortis Vertical Grip still maintains the same length as any traditional vertical grip and its angled design as well as the finger notch allows for ergonomic flexibility. Features: One piece billet design Slotted screws