What you see is not what you get. - ProMag Sig Sauer P320 9mm Luger 32 Round Pistol Magazine

I bought this 30 round ProMag just because I wanted one and OP was slinging Christmas discounts. The mag didn't fit my Sig P320, eventhough thats what the mag was specifically for. Anyways, it didn't fit because it was too tight at the top of the mag while inserting it into the magwell. The mag release notch inside the pistol didn't like the mag. So, after quite a bit of sanding and more sanding I finally got the ProMag to fit. There is definitely a flaw in the manufacturing process. Quality is sub par.