An AEG that we have not seen for a long time now is back on YouTube. Mach Sakai reviews the Tokyo Marui MC51 AEG, a 7.62x51mm submachine gun that is based on the G3 rifle but is designed by the English and is believed to have been used by the Special Boat Service (SBS). The scope mount of this is the same as the MP5 and usually comes with a 70-round capacity metal magazine. Mach Sakai checks it out how it still performs in terms of externa features, handling. and accuracy.