A wire connector that has a body with a closed end and an open end, a wire cavity within the open end, and a plurality of grip assemblies positioned around the body. The wire cavity is configured to rotatably couple to one or more wires. Each of the grip assemblies may have a raised rib extending between the closed end and the open end, a groove extending into the raised rib, and a rib cap shaped and positioned to cover the raised rib and extend into the groove. A first end of the rib cap may be adjacent the open end of the body and a second end of the rib cap may be adjacent the closed end of the body. The second end of the rib cap of each grip assembly may be joined to an end cap positioned to cover the closed end of the body.