Quote Originally Posted by Todd.K View Post
If you want the "anti rotation" it will need the hole drilled. The mounting style is secure enough without it, and really the whole anti rotation came about from some people who didn't tighten and or use thread locker.

The barrel nut is different. Lighter and the bolt pattern had to be changed.
Does Noveske use Threadlocker on their barrel nuts on factory builds? Minimum tq spec? What? (Is it the same/does it differ for Vltor VIS builds and SWS rail builds)?

new rail looks awesome! I hear Noveske and Vltor might be teaming up to offer a VIS?