Airsoft GI - Umarex H&K MP5A4 Gun Review and Internal Gearbox Examination

►►► Enjoy the video? Follow the link to subscribe: ◄◄◄ This just in! We now are carrying the MP5A4 from VFC licensed by Umarex, and it is awesome. A lot of people have been asking about how the internals work, and if the 3 burst function is electrical or mechanic. We were wondering the same thing, so we broke it open to see what was up! Be sure to check it out on our website!