Can you provide the link to this mysterious Laney Match Chamber?
Where does it say that you can't use the CCI stingers? They work great in mine.
I still cannot find a performance center model for the M&P 15-22 only the M&P 15 lists a performance center model.
The only difference between the models with the factory flash hider and the ones without a flash hider, is one has a flash hider and the other does not. And the SKU of course.
The MOE has its own Magpul Sights, Stock and Grip.