Yay or Nay?

[redfish414]

I have ran several of them. They haven't ever given me any problems.

me as well ,

 

[RamRoddoc]

Nay! Get a complete nib BCG from AIM for $99 delivered. http://www.aimsurplus.com/product.a...B+9310+MPI+BDG+Bolt+Carrier+Group&groupid=723

Could not resist too. Seems like a great price for a 9310 steel bolt w/carrier w/NiB coating.

 

[Clarke123]

Nay! Get a complete nib BCG from AIM for $99 delivered. http://www.aimsurplus.com/product.a...B+9310+MPI+BDG+Bolt+Carrier+Group&groupid=723

Does sound good ... but (correct me if I'm mistaken) doesn't Mil-Spec Bolts have some specification-necessary chrome plated parts? I know from the days of DIY automobile engine rebuilding, chromed rings and other chromed parts were always used in contact with non-chromed surfaces ... not to save money, but out of necessity: otherwise parts would not "break-in" properly.
one surface (the harder one) wearing into the less hard surface, thus insuring a tight and workable fit.

Further, I also recall a posting from the past that involved too heavy of a NiB coating that resulted in periodic battery lock-up failures with certain (and unpredictable) commercial / reloaded ammunition types(?)

Thanks for any clarifying information that you can provide!

 

[user 71]

Further, I also recall a posting from the past that involved too heavy of a NiB coating that resulted in periodic battery lock-up failures with certain (and unpredictable) commercial / reloaded ammunition types(?)

This!

MilSpec or GTFO!!!