ED Brown's S&W Shield 9mm replacement magazines are formed from stainless steel and held to the same exacting standards you have come to expect from Ed Brown Performance Magazines. High polished tube for speed and smooth operation. 8 round magazines perfect for use on the range or for your extra magazines for concealed carry. Slightly extended magazine includes filler to perfectly blend with the pistol grip. This replacement Shield magazine will meet or exceed factory magazine performance and carries a Lifetime Warranty on the tube and follower. Not compatible with the Shield Plus or Shield EZ.