I would also point out that as the mouth transitions from an unvoiced uvular affricate to a vowel, it will pass through a velar or even palatal approximant.  In other words, as the mouth moves from the shape of a {Q} to the shape of one of the vowels, it passes through an /r/ shape.  Notice that the non-existent "r" is only heard when the {Q} is followed by a vowel and not when it is final.

Jeremy