A pocket lighter with a snap-in burner assembly unit has been developed. The pocket lighter includes a snap-in burner assembly unit comprising: a fuel input port, a fuel regulator, a jet nozzle, and a burner cylinder. The pocket lighter additionally includes a lighter base comprising: a fuel tank, a fuel output port, a fuel ignition source, a fuel lever, and a push button mechanism for actuating the fuel lever and creating a spark; and wherein the fuel input port and the fuel output port mate together forming an airtight seal when the snap-in burner is installed within the lighter base.