I have seen yes and no on this. I have a S&W M&P-15 chambered for the 5.56mm round. Can I get an upper for this platform chambered in the .308 that will just replace the .223/5.56 upper, and be ready to shoot?
My Google foo is weak on this for some reason. Thanks for your time.
My Google foo is weak on this for some reason. Thanks for your time.
