User blog comment:Abyssal Horror/Mind blowing theory/@comment-4851119-20130717141553/@comment-1734134-20130718172859

That isn't the warp. It used to be, but it's now it's own separate realm. Also, flint lock weapons are used by Imperial Inquisitors, and pirates. Because fantasy uses them does not equal 40k using them.

Also, I have both the 5th and 6th Chaos Daemons codex, and have read the 7th edition Daemons of Chaos army book. They are different, with the realm being open to mortals.