Once again your post shows your ignorance on the matter. I've seen your FAQ and while I applaud your attempt it only serves to confuse the issue. NEA is not giving you the full picture.
Again, as I said, I am not versed well in the DI world, but you don't have to be such a C@ck about it.
Any receiver extension, be it AR15 carbine, AR10 carbine, AR15 rifle or Vltors A5 will thread in to the receiver. It doesn't mean that the rifle will function without further modification.
|Yup, hence why it only takes AR-10 buffer tubes...
Fluting doesn't go all the back. Thanks chops, I had no idea

. Regardless of how far it goes back it is fluted where the FSB would need to be installed for rifle length handguards. I'm also willing to bet that the diameter will be less than the .750" required to install it. Most reduce the diameter between .710-740" after the gas block/FSB.
Folks might need a new barrel in that case, or need to modify the existing one based on the post above by pauls
I don't need to recheck your FAQ to know any of that. I don't care who told you what, it's wrong.
I trust the manufacturer more than an armchair ar-15 expert, "No offense".
I'm not sure if you're implying that I'm an A-hole or what but you wouldn't be the first and I doubt you'll be the last. My wife would agree BTW. I tend be direct and to the point and that's generally interpreted as somewhat hostile for some reason.
You well know how you are acting.
ETA: so I did go looking for your FAQ again and I can't find it. I thought it was moved to Battle Rifles but I don't see it. I did find a version of it on another site and it says that it's unknown wether an a2 rifle stock can be installed.
It has been moved back to this forum. And it has been updated with that info on here at least.