my information is based on personal experience with 3 9mm ar15 mags, 1, 5.56 ar mag and 5 7.62x39 ar mags, all cprod and all fail to feed at at rate which make the gun unserviceable.
the x39 mags were made functional by adding stronger follower springs but the 9mm and 5.56 were just complete crap...
I will never buy another cprod mag as long as I live, which is one of the reasons I am not also pursuing an AR545 myself.
all guns lost in a tragic smelting accident.
I never said half the crap people said I did-Albert Einstein
You can't believe everything you read on the internet-Benjamin Franklin
Bean counters told me I couldn't fire a man for being in a wheelchair, did it anyway. Ramps are expensive.-Cave Johnson.