
Originally Posted by
skyugo
my friend's AR apparently jammed up due to carbon in this area
he was showing it to somebody. checked the chamber, released the charging handle... and CRUNCH. shit was locked up tight


I'd venture to say that 2-4 drops of oil down through the ports of the bolt carrier would have allowed the bolt to close. When I run my ARs in a class or competition, the carrier/bolt is literally dripping of oil........and you guessed it they simply work.
Dry and dirty doesn't run.
Wet and dirty does...
Chief Armorer for Elite Shooting Sports in Manassas VA
Chief Armorer for Corp Arms (FFL 07-08/SOT 02)
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