I arrived home from errands to find a box on the porch from Bravo Company. After dealing with a few things, I set about opening the box... and opening my AR as well.
It took a matter of five minutes to pull the bolt carrier group from the Colt upper, strip the bolt down, rebuild it with a new Bravo Company M-16 carrier, and have it reinstalled. Moments later I was function checking the rifle, and noted the 'catching bolt' syndrome has vanished and the weapon function checks perfectly.
Not only does it feel better working the action, but I have much better confidence I won't be faced with doubling or other AR weirdness resulting from a worn bolt snagging on the hammer. In addition, the M-16 bolt is heavier (why I chose it) and will hopefully slow the cycle time of my AR down a little, taming it better for match shooting.
Just to make it even funner (Yes, I can use that word), I installed a Magpul MOE Hand Guard
while I was at it. It actually took longer to fit those tight guards than it took to rebuild the whole bolt assembly.
Final word: The Fat Man approves of Bravo Company, their products, and how they treat customers. Fast, reasonable, and good coms. Thumbs up!