The mods include a better shotgun trigger (pull with your pinky!), cheek rest, better stock (my standard curved stock), bolt mods, and a craptastic sight mount.
2. The shotgun trigger (ask for internal pictures if you want)
3. How I connected the pin guide (lol, but it works)
5. Cheek rest (held in by blue clips)
6. Bolt mods
7. Sight mount
THE INSTRUCTIONS. BUILD IT HERE