Description

Double Bell Magazine Desert Eagle Gas Magazine (Black – 24 rounds – 779SJ)
 
Desert Eagles sure do put a smile on your face. Make it last and pick up some extra mags for quicker reloads. The Double Bell Desert Eagles are Tokyo Marui compatible too. So these mags would make a nice, cheaper alternative for the Tokyo Marui Desert Eagle user too.
 
Note* When filling the magazine with gas, theres a few things you can do to help keep it working properly and ensure they last as long as they should. 

Hold magazine with the fill valve facing up. (usually on the bottom of the magazine, sometimes on the back)
Insert the nozzle of the gas cannister and push straight down. Gas shouldn’t spurt out of and around the valve, it should go straight into the magazine.
Listen for the hiss inside the magazine as it fills. It’s usually quick and then stops. When it stops, stop.
With a pistol mag fill 3-5 seconds worth of gas. With an extended or rifle mag around 7-10 seconds. This gives you enough while preventing you from over filling it. When you over fill, usually the first shot releases too much if not all of the gas, which cools down quickly and prevents the gun from working properly.
Never ever ever release the gas from the magazine via the knocker valve with the mag out of the gun, the only thing that should press that button is the firing pin.
And Finally, always store a bit of gas in the magazine. Maintenence gas (Abbey 144a) or green gas that contains silicone lubricant (most do) This will keep the seals tight and stop them from drying out and failing. 

So to recap that… Gas in, fill downwards, just a few seconds, only release it by firing it out (dry firing with no BBs is fine) and always leave some or put some in for storage. Gassed mags are happy mags.