|I didn't know what to expect when I first bought this round. I figured that I would buy one before they get banned by worthless politicians, and glad I did.
The mag does what it is supposed to do. Although, I can't get the full 60 rounds in, I think it was like 55 last time I counted, but still a lot more than 30 rounds. Also, if you don't beat the magazine on the back on something hard, could have a jam in the magazine. Beating the back of the magazine on a hard surface makes sure that the rounds are to the rear and that they are sitting over the spring of where the spring is located making for a clean feed of every round.
Using this mag in a sig 516 5.56 piston driven ar-15 and works fine as long as I bang the back side of the magazine on sometime hard to ensure no miss feeds.|