Upgrade your firearm with the ProMag Smith & Wesson Shield 10-Round Magazine. This magazine boasts a heat treated steel construction with a black oxide finish and an injection molded magazine follower, while the spring is formed from heat treated chrome silicone wire. The design is compatible with a Smith & Wesson® Shield® 9mm pistol and features a 10-round extended capacity. Made in USA. ProMag Smith & Wesson Shield 10-Round Magazine - Outdoor Supplies And Accessories at Academy Sports