Paint gun tip and advice

Backally said

I’ve done a little paint spraying, not much. I acquired a Husky Pro paint gun from my late father. It has both suction and pressure feed, I can’t find a lot on it. I have a piece of wood trim For my house I would like to spray. New house, banged a piece of trim and everything else was sprayed in place so trying to match it up. So 1, what is the gun tip in the picture below for? And 2, It’s a sherwin Williams acrylic paint. I will stop by the store but I can’t find any thinning info. Is it worth my time to try and spray with this gun or am I better off looking at a real cheap airless sprayer.
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That is a pressure feed spray gun tip. All quality autobody/paint guns are siphone feed with air holes in the spray cap that bows out air to give you a pattern as much as 12" wide if you do desire.

Pressure feed guns are pretty lame, don't do a very good job of atomizing the paint, and create a lot of orange peal in the final finish.

HVLP spray guns are the new norm now, can check out some basic ones at Northern Tool or Harbor Freight, they will work.

Can also spend a lot more money on the Auto Body & Paint lines higher quality HVLP spray guns.

I grew up on Binks model 7 siphone feed spray guns and still love them.

I use the New HVLP spray guns for the newer basecoat/clearcoat paint finishing systems. They give a little finer mist and use less air volume to do the same work as the Binks model 7.