[ARCHIVED THREAD] - G.I. 20s Question

Posted: 2/28/2012 8:59:28 PM EDT

I was cleaning a G.I. 20 rounder and noticed the OKay stamp on the inside of the mag body. This was an "Army and late Air Force contract 20 round. Circa 1966 to 1971."

Was OKAY just one of many vendors that produced these Colt-marked mags? Who else made them in this timeframe?

Thanks,