The AUTF-1 Thumb Action Spray Gun:
Great for smaller touchup jobs.  This sprayer comes with a fan aircap.
Can switch to a round aircap for small detail patterns by switching the tip and aircap.
Both the fluid tip and needle are stainless steel allowing the use of water based materials.

Specs:
Part Number:       AUTF-1    
Type:                  Siphon Feed Thumb Action Spray Gun
Head Size:           .72mm or .028
Air Volume:         3 CFM
Air Pressure:        30-45 PSI            
Air Inlet:              ¼” NPT
Bottle size:          Available 3oz Siphon(43SCJ), 3oz Gravity(27SC) or 8oz Gravity(28SC) 
Spray Pattern:      2” to 6”
Weight:                1.25 Lbs
Finish:                  Chrome & Blue Anodizing