I've heard that the KKM barrels are one of the highest quality replacement barrels for the Glock. The new barrel, along with the heavier 20# spring on a captured guide rod, should make this a fine shooter with stiff cast bullet and jacketed loads, not to mention giving much longer case life. I think if it turns out to be as accurate as my OEM barrel, I may just sell the stock barrel.
Anyone here use the KKM barrels? I'd love to hear your input.