WeldingCity 5 Gas Nozzles 21-50 1/2" for Lincoln Magnum 100L and Tweco Mini/#1 MIG Welding Guns Premium quality Lincoln/Tweco style MIG gas nozzles 21-50, 1/2" orifice. Work with gas diffuser 35-50 or 51 in Lincoln Magnum 100L and Tweco Mini/#1 MIG guns or equivalent guns. You get Five (5) gas nozzles 21-50 at this price. We use U.S. Postal Service (USPS) as main carrier. Please provide a USPS deliverable address.