King Arms 20 Round Magazine for Predator KJW Marui 1911 Gas Blowback Airsoft Pistols (Type: CO2 / Black)

"I bought the Co2 one. This works great feeds well. The only thing is that the top of the mag, that on normal blow back mags is metal, is plastic on this mag. I have had that break once from the spring being pulled down and let go causing a piece to fall off. Once the mag is in the gun it seems to preform very well and nothing breaks than. Other than that just be careful with these mags and don't be rough with them.

"fantastic fitment on my predator custom 1911, but leaks co2 heavily with stock o-rings. with a good seal, these are consistent and need very little maintenance besides the aforementioned change.

"Been waiting for this to be back in stock after the last one that i ordered was broken when it got here...and its crazy cause i was the one whi bought the last one...just wondering when they will be stocked again

"I ordered one of these mags and got one that came with my gun the first one leaked gas after the first war i used it in (which was a week after I got it) and the second one broke about 3 months after i ordered it. Also the gas isn't even enough to shoot all of the bbs in the mag. It looks and feels really good though.

"One of the magazines came defective, when putting the co2 cylinder it leaks all the gas in time. The other is in perfect condition and the same problem does not occur.

"Ordered one of these pistols in CO2. The magazine that came with the pistol leaked with the very first cartridge install so I decided to try the extra magazine I ordered, boom, leaked even more than the previous one. Two out of two magazines failed at their first use. That is 100% magazine failure so these folks really need to work on their magazine design, badly.