Made to work with the new ZET system in the MWS M4 This magazine will work all year round and in very low temperatures that cause some GBB systems to fail. The fill valve is located on the base of the magazine and I recessed deeper than a standard valve to assist in filling. This magazine is part of one of the best GBB systems on the market at the moment and is made to very high standards.
Full metal STANAG style magazine
BB empty catch, works with Tokyo Marui’s new ZET system
Deep recessed fill valve
Reliable all year round
Easy to maintain internals