I finally broke down and bought these succulent examples of G&G quality. For years I've used other brands in my G&G M4, envying these finely-engineered delicacies from afar; the culmination of that has been WAY too many instances of yelling "HIT!" out on the field. I've used them many times, but never owned them.
You know that feeling you get when your gun spats air as your mag runs out or jams up? You wouldn't if you had these mags. These are _99% reliably-feeding, and they feed down to the LAST shot due to the unique plastic follower that pushes the last bb out into the hop up. Leave them DRY--you don't need any sort of lubricant to make these feed well!
You ABSOLUTELY get what you pay for with these mags. Reliability of your gear (or lack thereof) should be the last thing on your mind, and NOTHING sucks more than mags jamming up and misfeeding. These will step your airsoft game up more than a few notches!
-RELIABILITY!!! I cannot stress this point enough. They feed perfectly, down to the last shot, so you can tell when the mag is actually 100% spent.
-Sturdy construction. Rough-and-tumble is the name of the game for these mags. Drop 'em, fall on them when they're in your mag pouches, get dirt in them, it will not phase them.
-Feeding follower that extends the last bb into the hopup. I have yet to see any other mags, anywhere, that have this feature, and it is very useful.
-Cost. Can't get around it being expensive, but these will last forever and satisfy you 100%
-They apparently don't work very well with Echo-1 m4's and some KWAs. Try a friend's if you're unsure whether they'd work in your gun.
Rating: [5 of 5 Stars!]