So does microbest make AR-10 bolts? (I need one)
Unless its changed, Toolcraft only makes carriers for mil contract.
I've been pleased with toolcraft bcg in 5.56 and grendel, but toolcraft will tell you they OEM the bolts.
I'll probably go with their ar-10 bcg as well unless there is another sweetspot to consider. Most appear to be 9310 bolts.
Bookmarks