3CFM@40 is a little too small for a full sized spray gun. You could do burst spraying and very tiny pieces but we generally suggest you use a mini gun or add a 2nd compressor.
BEST FULL SIZE PERFORMANCE OPTION
3cfm@40
The only System for wood 1.5mm
Mini Gun w/ Full Size Cup: Gun Only / Case
Automotive 1.0 / Boat - Aircraft 1.2 / Woodworking 1.5

4CFM@40 This is borderline for the full sized guns listed below. While you can get by we recommend that you add a 2nd compressor.
These will run acceptable on 4CFM
Top of the line

These will run acceptable on high 4CFM or if you have an 8gallon tank or larger

Great Entry Level Professional

Great Entry Level Professional
