CYMA 280 Round Polymer High Capacity Magazine for AEG P90 Airsoft - Transparent

I love how this thing works but I find that when it gets low it doesn’t like to feed right. I love it and will be buying more.

I'm guessing the other reviewers got lemons because mine works fine. Out of the box however it did not, i had to use silicone oil on basically every moving part in the mag- wheel, gears, balance shaft, and the tenstion spring that pushes the bbs forward. Now it feeds 20rps in my new p90 build flawlessly, the mech doesn't clear it completely though, around 20-30 bbs are left at the end. I won't lie, it's a pain to wind it the proper amount of times because if you overwind is unspins when you slap the mag in, just play with it for awhile and you'll get it. Most people don't think plastic needs lubed but it does sometimes, just don't ever use oils with petroleum distillates like wd40 or 3&1. For airsoft guns silcone oil is your friend. To sum it up it's not perfect but it beats only having 68rds in a mag for the same price

They work OK they have a lot of feeding issues I would honestly just go with mid caps

Spring sometimes unwinds when putting in gun. Doesn't make it 50 rounds before needing to rewind.

I modified the high Magazine so I can wind up the spring while it’s in the gun

They are good for a few 1000 rounds so like 2 days of game play then they start to have problems feeding and jam alot

Trap door and winding mechanism broke in 10 minutes.

Dont hit it really hard or the spring will yell at you and go away so you will need to wind it up again.Give it a firm push, dont pound it into the housing thing.It functions but I think the 2000rd M4 mag adapter is more worth your time and money.