If you having trouble finding a new weapon in the early game, do the missions for the mos eisley mayor, and his assistents, you get a free CL 14 weapon of your choice as a reward for complting the bandit missions.
I think the problem he is having, like other new players, is trying to upgrade their CL 1 pea shooter. There hardly any good low CL weapons on the market, likely because weaponsmiths cant be bothered with making low level weapons. This would partly be due to how quickly a crafter can max out their profession with little effort. They just dont waste time making lower teir weapons in that case. And any weapons you find as loot are utter trash. Its really not a good experience for new players trying to break in.