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ProMag SMI29 6-round magazine for Smith & Wesson Shield in .40 S&W. Steel body with oxide finish, injection-molded follower, and chrome-silicone wire spring. Made in the USA. Fits S&W Shield .40 S&W pistols. Not compatible with M&P Shield 9mm, Shield 9mm, Shield Plus 9mm, or Shield EZ 9mm.
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