The KeyMod Evolution Vertical grip is made specifically for the KeyMod rail systems. The long version of these grips mount directly to the handguard with supplied KeyMod attachmentpoint. The configuration allows the user to have no gap or Picatinny rail interfering with proper hand placement on the rifle. It is made of solid aluminum and stainless steel for unmatched durability. The KeyMod AR-15 vertical grip can be removed while leaving the attachment point in place.