Not properly staked - FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer

It initially seemed nice but upon closer inspection it has a major flaw and a minor flaw. Major - The right sides of both screws were not properly staked. The indentations weren't even touching the screw. Minor - it has a good number of tool marks on it, though they are cosmetic and not in places where it contacts the rifle.