Devices, and methods of attaching accessory mounts to vertical fore grip handles on firearms, such as rifles. The accessory mounts can be molded to extend off of the handles. The accessory mounts can attach to the handles by interlocking plugs and slots. The accessory mount can have rails so that an...http://www.google.ca/patents/US7900390?utm_source=gb-gplus-sharePatent US7900390 - Light rail and accessory rail mount for vertical fore grip
