Originally Posted by Thomasconnor
Hi and thanks for looking, and sorry for the confusion. As I understand, in order to separate the two halves at the hinge, the two grip halves (receiver) must be separated.
In addition to the four screws in the receiver, there is a round collar nut that must be removed (see post 3 above). The collar between the bolt tube and the receiver, part #148.
How does one remove the round collar (nut)? I am not referring to the Barrel nut or Block nut since the plan is to separate the barrel at the hinge?
My apologies for misunderstanding. I haven't taken mine that far apart, but on the newer generations, as 850sub said, usually a strap wrench will suffice.