In the first video by the Philippine-based Biohazard Airsoft Shop, they cover the SRC MP40 AEG. This full-metal AEG, complete with German markings, authentic Bakelite fore and pistol grips, and a realistic full-auto-only design (no safety), demands careful handling.  Featuring an anodized aluminum receiver, 8mm ball bearing gearbox, and a high-torque motor, it fires at 330 FPS.  Steel parts, a metal hop-up chamber, and a 210-round steel magazine complete this must-have replica for German reenactors.