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How Much Bolt Carrier Staking Is Enough?
We've all encountered varying degrees of staking to bolt carrier screws over the years. Given that "enough" is whatever it takes to keep the fasteners from loosening, how much is enough?
Referencing the pic below, I've always gravitated toward Colt and BCM bolt carriers because they tend to have what I've labeled "GOOD" staking as in the picture. I recently purchased a bolt carrier from RightToBear that was "just inside" this quality of staking as well.
But how much is enough? Although I'd hesitate to call the "WEAK" staking on the right good enough to keep the fasteners from loosening under pressure--I could be wrong, couldn't I?
So "how much is enough?" Is deforming the opening next to the fastener head enough, or must enough material be displaced that it visibly covers part of the fastener head?
Attachment 58263