The Arisaka Vertical Grips are a robust, minimal grip for KeyMod or M-Lok handguards. Each one features a radiused profile at the top which tapers to meet the mounting surface on the handguard, giving a low-profile feel and ergonomic comfort. Twin mounting screws ensure secure attachment. The grip is hollow, with no end-cap. Height: 2.50" Width: 1.30" Weight: 1.8 oz The Vertical Grip is CNC machined from 6061-T651 aluminum and MIL-A-8625 Type III hard coat anodized. Requires a 9/64" Allen wrench for installation (not included). VFG-K Hardware: Two KeyMod standard nuts and two 8-32×1/2" hex cap head screws. VFG-M Hardware: Two M-Lok n Mfg: Arisaka Defense