I want to send in a gun for a tune but I don know if I should get the ADV or maccari kit install?
The kit install will have close to the same firing characteristics of a ADV. The ADV will have additional work that will make the gun cock smoother, have less recoil and on many comes with additional trigger work. Basically, you ask yourself if you want very nice or all the bells and whistles. Most of the ADV tunes have the triggers reworked for slightly lighter pull so if you want a very light trigger and piston buttoning your better off with the ADV.
