30-Round RealCap & 130-Round MidCap mode is switchable.
One button easy switch from mid-cap to real magazine capacity. One-piece magazine shell providing more durability. Made of fiber-reinforced polymer. Applied with high strength material providing high-quality external texture. Compatible with most AEG at the market, including Arcturus, Ares, Cyma, APS, G&G, E&L, etc.