Kimber replacement - Advantage Arms 1911T Conversion Caliber

I purchased this to replace the upper on my Kimber .22 because of so many problems with failure to feed, stove pipe, and extract. I tried every type of ammo and nothing seemed to work consistently. A friend recommended trying the Advantage Arms Conversion and I am very happy at this point with its performance. So far none of the same repetitious problems with feeding etc. This upper was also reasonably priced.