Phenomenal mags, easily keep up with my 30+ rps aeg. Aesthetically appealing bada**ery with the imitation rounds. These mags fit like a glove in my DBoys SCAR L reiever. Magpuls do fit, but it does take more effort due to the large plate on the bottom. When loading the mags, I can get up to 50 pumps trough my speed loader, which is 3-4 bbs each time, making the capacity range about 150-200. There's a good reason why I bought 10 of these. I used to run mag brand midcaps, but these hold more rounds, look better, and feed better.
Strong ABS plastic
Magpuls do fit
Fits reciever perfectly
Never misses when feeding
Very high capacity (150-200)
Magpuls are a little hard to get on
Sometimes grooves catch on inside of my mag pouches, so it's a little extra force to get it out
Overall, 5 stars no doubt. Cons are nothing that impaired my gameplay. If you're considering these mags vs another brand, buy these.