A rather very short clip posted by GBLS showing South Korean President Moon Jae-in checking the GBLS DAS M4. The DAS M4 is the most realistic M4 AEG in the market in terms of operation and is being aimed at the tactical training market. GBLS is based in South Korea... "GBLS. I edited only scenes shot by President Moon Jae-in of Korea. GBLS is now a military training gun manufacturer. We would like to thank all those who love us and we will repay you with a good product.