CYMA x SP System 30 Round Magazine for CGS & MWS Gas Blowback Airsoft Rifles

"Mags fit DD N4 MWS running 1.8j with stock nozzle so be aware of increased gas flow, no issues running them with GM Gen 3 nozzle with FC FEDA valve set at 1.3j. I have 8 of these and the only complaint is the oring on the fill valve is terrible quality sealing them out for a better o ring or buying a metric set to have for replacement is highly recommended. Have no problem running 90rds through one fill with stroked buffer.

"On the more expensive end but very tough and increase gas flow.

"These feed perfectly fine with the EMG GBBR lineup. I read a lot of people saying they were bad mags that didn’t feed or broke nozzles but that simply isn’t true for the EMG nozzle. I would not venture into running these on a guns modify or TM nozzle, as almost all the negative reports on these magazines come from owners running a TM or Guns Modify nozzle.

"These mags are Tanks! Ran them at an event this past weekend and they went above and beyond what I could have ever imagined. The AO I was in was extremely cold and these mags kicked ***. They didn't even flinch to the cold and even help my rifle shoot straighter (Was having issues with the hop up on my rifle) Could no ask for better mags, I will be ordering a lot more.