I just installed my first turned aluminum gun tube in my DLM Panther A. I can't be more pleased. I couldn't believe that there were at least 6 PE pieces involved in the construction of the muzzle end piece! One thing that was a challenge was fitting the "round pin" at the base of the tube into the rectangular opening in the mantlet of the kit. A drill bit and a little study/patience was all it took.
For those of you who have never tried this AM feature, I would highly recommend it, the realism and scale effect are dramatic. Now I'm hard at it assembling my Fruil tracks.
Steve