"Lets face it. M4/M16 mags are everywhere, and when a G36 player runs out of ammo on the field, they're usually screwed. But that's where this little beauty comes in. Pop out your magwell pin, take it off, and insert this one in. May need to sand down a little bit, but when its in, pop that mag well pin back on, and you're good to go. The M4/M16 magazines will be a bit wobbly in this, but duck tape can fix that with a few strips. After that, enjoy using your teammates magazines, and angering G36/AR-15 purists. Now for the other stuff-
This went in a jg g36. Needed small amount of cutting, but old mag well can still fit as snug as before.
Holds about five or so bbs inside. But their probably your teammates so why not?
So there ya go, one of the best and easiest upgrades for a G36, and only for the price of about one M4 mag."