Good, I have literally never had any problems with this magazine.I'm srry to thosa who have. Its a little heavy and the bottom is aukward but the FPS is great at 350 and It isn't that hard to lube your gun to be ready to use the CO2. Dropped this mag five feet onto concreet and the only thing that broke was the conpletely non essential plastic nub that keeps the bottom cover on. This metal is very strong and the mag is put together woth the intent on staying together. Good mag for a great gun. Not the cheapest mag but its a great buy.
hard to break
very good capacity, 31
good valves (had mine for a while)
CO2 never gets stuck or leakes!!!
Not a lot of plastic
Heavy (lot of metal)
sticks out of the gun about a half inch but its worth the fire-power
almost useless plastic cover on bottom
CO2 is not quick to change (so what else is new)
needs a larger than normal mag pouch (be warned)
Rating: [5 of 5 Stars!]