I presently have a CTR stock on my Norinco cq-a, just bought an M&P-15 and wanted to switch the stocks over. I'm wondering are they interchangeable? I know the CTR stock is offered in mil spec and commercial spec, not sure which is on the Norinco or how to check but recall some of the rifle not being mil spec. If it is indeed commercial spec I'm assuming I can't use it on the M&P and the put the M&P on the Norinco? Thanks


















































