[Matt 'Maverick' Watts]

I've had a Magpul PTS Masada since late January, and to be honest, I've experienced NONE of the issues listed here. In fact, I've had the exact opposite experience with mine; shot beautifully right out of the box, has an excellent, quality finish on it, no mechbox issues at all. I'm incredibly impressed with mine, and all I've had to do to it is change the spring.
Compared to my VFC SCAR-L (which I absolutely love), the Masada is quieter, a bit lighter and feels better in my hands.

Just goes to show that even with the higher end guns there can still be 'good' ones and 'bad' ones.