KSC M9 Homemade Bullpup Kit

I've just finished editing video, please watch.

 

Im still writing the tutorial, for while:

- Im using KS/Echo P90 aeg body

- Ksc M9 gbb

- Use long inner barrel, custom from 30cm, tight bore for ksc m4 gbb

Here how to tutorial:

1. Overview, try to put big picture how to doit
2. Preparing the P90 body (still on writing)
3. Preparing KSC M9 (still on writing)
4. Trigger transfer bar (still on writing)