WYSHTECH Hobbies takes a look at the WE M4 CQBR Open Bolt GBB Black Edition which should be available at most airsoft retailers worldwide... "Today we are reviewing the WE CQB M4 Black Edition GBB that we got in a $150 Evike Mystery Box. In the video, we'll cover the box contents, the rifle itself, a how-to guide on adjusting it's WIERD HOP-UP,  do a mag dump stress test, and Chrono test! Enjoy!"