Hello all. Got a question for all you FN FAL aficionados out there, I recently bought an FN FAL style rifle at a pawn shop, This is the first FN FAL I've ever had or used and it's a very different animal than the AR style weapons I'm familiar with. After spending many hours of research and trial and error I finally managed to get the rifle to cycle properly (previous owner had the gas valve turned off and the regulator was set wrong). Now that it's operational, I'm looking to get more mags for it. I notice that mags are available in either inch or metric pattern. From what I've read, I think my rifle is an inch pattern, but I'm not certain. Before I waste my money on the wrong mags I thought I'd see if anyone here could help me identify which type of FAL I have, inch or metric. I've tried searching for a users manual from Imbel that might answer these questions for me, but I can't seem to find one from this manufacturer. On the right side of the receiver: "L1A1 Sporter CAL. .308 Receiver made by IMBEL - Brazil Imported by CAI St. Alb VT" How can I identify and verify inch vs metric pattern rifles? Thanks all for your help with this!