New Lower receiver vise block

[montana]

Looks good.

I went a different direction and started useing ratchet lock castle nut/end plates. No more high torque needed and no vise block needed too do up the buffer tube nice and sqaure to the lower's centerline. Just eye ball it and a quick snap with a every day castle nut wrench and she is nice and tight and never coming lose.

The problem I have with that set up is the actual clamping force is set by the 38 to 42 ft pounds torque, which creates the friction between the castle nut and end plate. If the ratchet system is able to meet the proper torque, then it should be good to go...