I have an NEA15 PDW 7.5" Barrel with CCS stock which I purchased a few years ago.
After the first year of use (approximately 250 rounds) I took it out to the range and the action would not cycle, I had to cycle it by hand by racking the charging handle round by round. Took it home and cleaned it, only to discover the gas block had come loose as the setscrew had backed off.
Since that time it has worked without issue until this past weekend, where upon the first round with the stock fully extended, the recoil caused the stock to collapse completely. This pinched my neck skin between the buffer tube and butt of the stock and hung from there for about 15 seconds as I fumbled with my non dominant hand to depress the stock release button. I have looked the stock over and could only deduce the push button which provides the positive lock of the stock by fitting into its notches, has worn enough to allow the stock to collapse with insubstantial force. This can be seen in a video I took and posted.
I love this rifle, but these two issues are putting that love into question. Hopefully it's a simple fix and won't reoccur.