From G&G we have a High Capacity Magazine for M4/M16.
The Magazine
This is a replica 5.56mm M4/M16 Magazine for AEGs. It has a 450 round capacity and features the classic styling of a standard STANAG Magazine. It is constructed from metal with polymer internals. It is loaded via a window at the top of the magazine and there is a winding wheel at the bottom to tension the magazine.
Compatibility
This magazine is designed for G&G’s GR16 Range of replicas but is also widely compatible with many other brands of M4/M16.