It all began with my first HK (and technically my first firearm purchased by me) 8 years ago. Then 4 years of part collecting, and finally 6 months at TSC....she is finished. My crown jewel. Made from parts kit from Gordon Miller with factory 21E barrel. However most internals including the trigger goup, housing, bolt/carrier group, and recoil buffer are all factory MSG90. Special thanks to Mike and Tammy at TSC; they are a true class act.