MIG Gun Kit for Forney 270 MIG Welder 319 Tips Diffusers, Nozzles .030 .035 .045 MIG welding gun Accessory Kit ( .030" / .035" / .045")- 2 Nozzles 1/2"- 2 Gas Diffusers - 2 Nozzle Insulators - 20 Contact tips fit .030", .035" .045" as ordered.