In article ,
says...

Mike Marlow wrote:
Hi Guys:

Just thought I'd post an informative thing here. Recently the local
HF had a parking lot sale and I picked up an HVLP gun - just because
it was cheap and I thought I'd see how it worked as a primer gun. Can't
ever have too many guns, ya know. This is the gun I picked
up...
http://www.harborfreight.com/20-oz-8...gun-67181.html

I got it for $9 at the parking lot sale prices and figured I wouldn't
go broke if it did not perform well. Loaded it up with urethane
primer today and put it to use. It worked perfectly. I wouldn't
expect more from a very expensive gun. Now - it may not last all
that long but time will tell that story. For guys that paint on a
far more occasional basis than I do, it would be a great primer gun.

The cautionary reminder is these are CAS guns and no CAS gun is
designed to shoot latex like a turbine HVLP, so don't look for it to
fulfill that purpose. But - if you're shooting lacquer, urethane,
etc., especially on an occasional basis, it's a good buy - even if
it's a throw away after 5 or 6 uses.

Actually it does fine with latex if you thin it and use some floetrol.
The catch though is that you need a bigger tip and that's hard to get
from HF.

A good source for cheap spray equipment (they have "good" too by the
way) is http://www.eastwood.com/. At one time their cheap guns were
the same as the Harbor Freight--whether that is still the case I have no
idea.