(affiliate links included)
Notes on the video:
-The firing test was done from the standing, unsupported position by the Chief at a distance of approximately 20 feet. He fired 5 shots on semi. The full-auto burst was approximately 1/2 second. A moderate wind was blowing during the test. We used 0.20 gram BBs and a 9.6v Tenergy Battery
-As with the JG M4 CQB, the JG M4 S-System has a functional charging handle, non-functional bolt catch, and a non-functional forward assist.