My shim job on my Ares M4 AEG Non-contact Firing Control System
 

Just shimmed the gun and posted a recording on Youtube, wondering if this is good enough.

After 5000 Rounds Break in - Ares M4 AEG Non-contact Firing Control System Shim Job Sound Test - YouTube Ya it is just a black video.

It is running on a G&P m160, m100 Spring, 9.6v nimh