Specna Arms Magazine M4 Hi-Cap 300 Shot tan

The metal hi-cap magazine from Specna Arms holds 300 rounds and the spring is compressed by means of the gear wheel found on the bottom. As a result, the BBs are continuously fed into the hop-up chamber of the weapon until the tension in the spring within the magazine is fully released.
The magazine is suitable for many common AR15 / M4 models and can be filled easily.