The GBLS DAS M4A1 airsoft rifle is first seen beyond the shores of South Korea and appearing in Japan for the first time. They demo the fine features of the DAS M4A1 as it is the AEG with the most realistic operation that can rival gas blowback rifles. They also had the honour to have Tanio Koba check their creation so watch the second video to find out what the airsoft legend thinks about it.