The newer Sig factory SS mags are the best I have found for mine, and I greatly prefer them to my older blued steel Sig factory ones. There are no "LEO" mags that I am aware of with the possible exception of a few more or less junk aftermarket 10 rounders that may be floating around...stay away from any 10 round mags for these guns in any case unless you just want to pick one up cheap to play with. There do exist factory 8 round mags, but the general concensus of LE agencies that have used them was that they are not as reliable as the stock 7rd. mags. You will find various individuals who may say that they have had no problems with their one or two 8 rounders, but I speak of hundreds of mags carried and used by hundreds of officers for several years...take it for what it is worth to you.