Thanks man!Beautiful work as always, I’m guessing that’s the rare 522k kit? Unless you’ve got a new source for em
The latest MP5k is all new design. The factory GSG 522pk c0cking tube is actually plastic. Here is a pick of the first prototype that I was working on earlier with the factory plastic c0cking tube.

The latest version is using a shortened aluminum c0cking tube combined with an MP5 steel front sight with swappable sight ring.
I needed to also lathe up a new charging tube as the original is too long to work with the MP5K. That allowed me to drill a hole size that works with actual steel MP5 charging handles. No more worry about breakage