If you look at it from an engineering stand point, the Kyo Death Robot MG should be the best of the best, although it’s so expensive and rare that few have gotten to try one. Hopefully I will one day be able to and make that judgement. While the name is a mouthful, the DRMG offers a very unique design by using magnesium instead of standard aluminum. The main benefit of magnesium is that it is 2/3rds of the weight of 6061 aluminum, but having the same or greater strength. This makes it the ideal material for a bi metal, allowing you to minimize the weight of the body without sacrificing structural integrity. Sure 7075 and 7068 are stronger materials, but there is an extent to how thin a certain material can go before it can’t even be machined without bending. By using magnesium, you achieve the low weight of machining a the metal super thin, without actually having to do so.