If looking for MP5 AEGs apart from the more known brands such as those made by VFC for Umarex and those from Tokyo Marui, there is an affordable line from Taiwan-based SRC. In this video review, Reapers Airsoft goes over the SRC SR5 SD6. This has a metal upper receiver and a plastic lower... "Hello everybody! Finally, there is a review again and although we take a look at the SRC SR5 SD6 in detail."