[thatguy96]

It says that all of the USMC's Stoner 63s were exchanged for M16A1s at the end of the test cycle, which last from February 1967 until May of that year. I'll admit I was wrong, but I think the dates might still be innaccurate in the OOB. I guess I was more familiar with the USN SEALs who kept their Stoner 63As in active inventory right up until Grenada.