10-29-2012, 11:13 PM
Quote:Took the gas key off found that it was not drilled through.
That's outstanding Quality Control der, Cleatus! This is why I often prefer to build my bolt carriers from scratch with a nice chrome-lined key, with suitable hardness. I never realized how much variation in surface hardness there was until I started staking them with a compression staking tool. One carrier key I had felt like lead, it was so soft, and it was a chromed key all around.
