Daniel Defense Bolt Up System: Lite vs. RIS II

AR/M4 AR General Discussion
1

Currently running a Lite Rail and want to swap in out for the RIS II. Is the bolt up system different, or can I just use the bolt up system from the Lite for the RIS? I have searched and found both answers…

2

https://www.m4carbine.net/showthread.php?t=109116

And this one. Read down to IG’s post. That’s info straight from DD.

https://www.m4carbine.net/showthread.php?t=97333&highlight=RIS

3

The LITE and RIS II do NOT interchange, you would need to pull the barrel nut and replace the collar.