1st Duracoat...texture issue

[Zartan]

Hmm, wonder how well this would work. Link

[Gunsmith Dan]

I would stay away from air brush guns when trying to paint a large surface like a receiver. A touchup gun or regular paint gun will work much better and look better.

The problem with airbrushes is they are made to paint small areas, if you widen the nozzle to paint a wider area you reduce the amount of paint. You will end up with a surface like what you had before, you do not have enough paint coming out on the surface. That plus the surface already being rough adds to the gritty looking surface.

So sand blast or hand sand to 320 grit and use a touch up or regular paint guns and remember DO NOT tilt it to far past upright position. You can buy touch up guns for between $20 to $50 in most places.