Watchtower Firearms Style 3 Skeletonized Forward Pistol Grip Mil-Spec Black Type III Hardcoat Anodized. Style 2 and 3 share integrated finger grooves and feature a paracord option. These lightweight grips are manufactured in-house from the same 7-series aluminum and are compatible with any mil-spec lower on the market. Specifications for Watchtower Firearms Style 3 Skeletonized Forward Pistol Grip: Manufacturer: Watchtower Firearms Color: Black Finish: Black Type III Hardcoat Anodized Material: Aluminum Fabric/Material: High-Grade Billet Aluminum Grip Type: Pistol Grip Additional Features: Mil-Spec Design: Style 3 Features of Watchtower Firearms Style 3 Skeletonized Forward Pistol Grip High-grade billet aluminum; Patented design; Thumb and index finger rests; 3 finger grooves; Black type III black anodized finish; Package Contents: Watchtower Firearms Style 3 Skeletonized Forward Pistol Grip Watchtower Firearms GRP-ST3: Style 3 Skeletonized Forward Pistol Grip Mil-Spec Black Type III Hardcoat Anodized