I'm getting punches. Do I need that AR15 Multitool Wrench? Anything else?
Gotta love the internet.I'm getting punches. Do I need that AR15 Multitool Wrench? Anything else?
+1Your barrel will be headspaced when they install the extension. You won't need to worry about it.
You remove the barrel nut, so the barrel is "loose". You won't need to headspace it again or anything, just screw on the new barrel nut and be on your way.Reading those directions it looks like you take your barrel off to install a FFR. So will it still be headspaced? Or what is headspacing.
A handy item to have, if you don't have one of those handy-dandy little pivot pin detente tools, is a set of flat feeler gauges to hold the detente in while you insert the pivot pin.
Believe me, there is nothing that says "Ooooh, (insert your favorite curse word here)" than hearing a "sprung...click" as the detente shoots across the room, ricochets off the wall, then the ceiling before disappearing into an alternate universe where all pivot pin detentes go to be free...