Double Eagle (DE) produces 35-round magazines specifically designed for use with their Noveske N4 MWS GBBR, which are cross-compatible with the Tokyo Marui (TM) M4 MWS ZET System. 
 
Key Specifications
Capacity: 35 rounds (real-cap/low-cap).
Compatibility: Fully compatible with Tokyo Marui MWS M4/AR-15 series, CYMA CGS system, and Double Eagle MWS series.
Gas Type: Primarily designed for Green Gas but compatible with Red Gas (Note: TM recommends low-pressure gas like 144a for their original replicas to avoid internal wear).
Features: Includes bolt stop components to engage the ZET System bolt lock when the magazine is empty.