Evike Matrix Full Metal 400 Round Flash Mag For M4 M16 Series Airsoft AEG - Black - (37399) Capacity: 400 +/- 15 rounds Manufacture: Matrix Material: Full metal/Steel Application: For DBOY, A&K, BOYI, VFC, CYMA, G&G, G&P, Matrix, Tokyo Marui, Classic Army, ICS, JG, ECHO1 and other compatible M4 / M16 / SCAR / FN2000 Series Airsoft AEGs