Re: AR-10 bolt
Post is a bit old so not sure if you got your answer already but I have an LR-308 and use the factory BCG from DPMS. I do run the lightened JP BCGs in my AR15s and I do have one that likes to double and triple with the JP BCG but the others work fine. I have not spent alot of time with the issue but when I slap the DPMS M16 BCG back in the double and triple issue goes away so I assume the lightened JP BCG is outrunning the hammer hook on the CMC trigger.
By the way, my DPMS was a 24 inch heavy barrel. It is now an 18 inch with a medium profile (still has the rifle length gas) and is shoots 1/2 MOA all day long. I am not using an adjustable gas block, I dont see the need on the 308 cause all my loads are moving and the 38lb DPMS BCG absorbs whatever recoil the SJC comp does not diffuse.