First problem - yours was not the purple 43430 Harbor Freight gun the world has come to "love". Your reference is to 47016.
An apple and an orange.
The 43430 will do a decent job and is NOT filled with silicone/RTV. I used one for a while, then 'graduated' to a good hobby gun than on to a pro level, more to cut back on overspray then for lack of a good experience with that gun.