holding 2 mags in my hand and looking at them...one parkerized one blued....they are very different....the feed lips are 2x longer on the parkerized...along with a few other details different
is 1 version older than the other? is one an ''improved'' version?
all i know if the park ones typically dont run well in my Mac 10 Lage upper, while the blued ones do....
why are they different?