Good mag, but just know its extended length and reduced capacity - Pro Mag Smith & Wesson M&P 9 10-Round 9mm Magazine

Be aware, it is an extended sized mag, that is reduced to 10 rounds, so it sticks out half an inch past the grip, you'll need the grip / magazine spacer which is a bit hard to find if your gun didnt come with it, or do what i did, cut a piece of plastic as a stop and glue it to the bottom of the magazine so that the mag does ram into your gun too far, its clearly a cheaper mag, but ive had a few hundreds rounds with no issue, recomended.