Quote Originally Posted by Titleist View Post
Bill did a great job with this rail. The ONLY thing I'll say is that it requires a new barrel nut.

With that in mind the Daniel Defense rail is totally drop in, and is so low profile and light it makes the normally boat-anchor-heavy 416 feel like a modern featherweight SBR.

ETA these comments are in regards to the 416 rail!
The 416 rail uses the standard HK barrel nut. The M4 rail uses the proprietary barrel nut

Sent from my PG86100 using Tapatalk