Full-auto fix how-to video:
WE M&P Full-Auto Fix - YouTube. Or in my blog post about the video here:
http://overhoppers.wordpress.com/201...full-auto-fix/.
Found out that WE is producing working hop up arm/dials as in the WE M&P Compact - took one apart at work and "re-purposed" its parts into my gun.
Read about it here.