[Degenret]

I just got a BCG for a build and the o ring is included but not in the bolt. Should I use it? Why would it come this way? I got it from JoeBobs
JoeBobOutfitters Premium Complete Bolt Carrier Group (M16/AR15 BCG)-MPI Tested

Here it is out of the package, in case it matters.

 

[Prominus]

I just got a BCG for a build and the o ring is included but not in the bolt. Should I use it? Why would it come this way? I got it from JoeBobs
JoeBobOutfitters Premium Complete Bolt Carrier Group (M16/AR15 BCG)-MPI Tested

Here it is out of the package, in case it matters.
View attachment 20725

No need unless you are having extractor issues.

 

[Mekks]

Never installed mine and it extracts fine.