Vegaslaith
Member
What exactly are "Metric Mags"? I saw some FN FAL mags labeled as metric and my first instinct was that they take 7.62 NATO. I just want to be clear on this before I buy. BTW 7.62 NATO is .308 Winchester and the two are interchangable right? (same with 5.56 x 45 and .223 right?) Thanks for the help.