02-21-2014, 12:41 AM
As I'm still building my first Grendel, and the brown Santa hasn't delivered my barrel yet, I have a question regarding the barrel nut: is it the same dimensions as a regular 5.56 barrel nut? the reason I ask is, there is a tool much like the Geissele Reaction Rod that Brownells sells, but is $38 instead of $100.

