Tweco / Lincoln style Mig Gun. Our Tweco Minimig, Tweco #1, #2 ,#3, #4 & #5 style* replacement Mig Guns interchange with original equipment welding guns and use consumables, replacement parts and accessories for Tweco and Lincoln Magnum style Mig welding guns. Our Mig welding guns, Tweco / Lincoln style, are made in the USA and meet or exceed OEM standards and specifications. Ready to weld includes: contact tip, nozzle and liner. "Free SHIPPING" to 48 States!