MIM
What hasn't been discussed in this thread is how in some cases MIM parts could be significantly stronger than machined parts. That's because the design engineer has a lot more flexibility in designing the part. He can design the part as a solid model in one of many CAD systems in use (Kahr uses SolidWorks) then use a Finite Element Analysis program to analyze the loads and optimize the shape for the application at hand. This also means the design engineer can use lower per-unit cost MIM parts in some areas so they can substitute better materials or finish in some other area and still meet cost targets. As people demand more features and higher performance, this is just another tool. Design engineers aren't stupid - in fact they're generally pretty conservative - but can be let down by poorly manufactured parts. There are well designed and well finished MIM parts and some not as good, but it's done to increase the feature content of the product at the price point they are aiming for.