This magazine is made of metal and fully compatible with aftermarket airsoft guns taking M4 magazine. The capacity of this magazine is 300rds and the internal compoments of the magazine are imported from Japan. Extremely smooth loading of the BB means no re-wind is necessary after one full wind up.

300 rds capacity, metal magazine

Selling points:

1. High Quality internal compoments imported from Japan
2. No Re-wind is needed ***  (One full wind up will allow you shooting all BB bullet out!!)
3. Fully Compatitible with Aftermarket Airsoft Guns taking M4 Style Magazine
4. Colored Core for eye attraction and easy to locate upon dropped