WeldingCity 2 Gas Nozzles 21-50F 21-50-F 1/2" for Lincoln Magnum 100L Tweco Mini/#1 MIG Welding Guns Premium quality Lincoln/Tweco style MIG gas nozzles 21-50F, 1/2" orifice, flush tip. Work with gas diffuser 35-50 or 51 in Lincoln Magnum 100L and Tweco Mini/#1 MIG guns or equivalent guns. You get Two (2) gas nozzles 21-50-F at this price. We use U.S. Postal Service (USPS) as main carrier. Please provide a USPS deliverable address.