Ok so I recently purchased a new saiga 12 unfortunately the finish on the gun is not the best and you can see bare metal all over the barrel so I went to lowe's I picked up some heat and rust resistent paint that is a little more Black matte then the current color. Now inorder to make it look good I want to paint the entire gun this color, I have taken the gun apart before but, have never painted one before, and I have never taken the barrel or the stock off of it, so how should I do this? The barrel is by far the worst part so maybe I could just paint that and not worry about the rest of the