I have a question concerning SA80 A2 mags. I appericiate there are bigger isssues but this one has picqued my interest. I have just handed some magazines back into the armoury and noticed that in the slot where the magazine release catch sits and holds the mag in place (I don't know what it is called) there is a biogram. All 6 of the mags have different ones starting from AA through to AF. Again, I realise this isn't a huge deal but it is, to be frank, doing my head in, in that I don't why. Any Arrsers out there who can shed some light on it??? P.S. My SQMS wasn't even slightly useful when I asked him but would like to know anyway.