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ProMag, S&W Shield Magazine Nine Rounds, .40 S&W, Blued, Steel

SMI 31
Typically ships the same business day when ordered before 4pm CST.
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These magazines were designed for professional shooters and law enforcement personnel whose lives depend on a perfect shot every time. Expertly machined for exceptional quality and guaranteed to feed and function for every shot. ProMag magazines include a lifetime guarantee, if you ever have a problem with their magazines; simply return them to ProMag for replacement. When you need a cost effective aftermarket replacement mag that you know you can count on, you need a ProMag!
This magazine is made from heat treaded Blued Steel with a base molded from Technapolymer polymer.

Features and Specifications:
Manufacturer Number: SMI 31
Caliber: .40 S&W
Capacity: Nine Rounds
Material: Steel
Finish: Blued

S&W Shield .40 S&W Platform


Item#: MAG-428-157
Total number of Reviews: 6

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1.0 5
"I have to say that these particular magazines are the worst pieces of equipment that I have ever experienced from a reputable company, by the time I got the fourth or fifth round into the mag I could hear the grinding and binding of my bullets trying to squeeze into a place too tight to fit. Needless to say I was unable to use these mags. They need more design work from the factory, I gave one star but a mag that doesn't work should have zero stars,proceed with caution."
1.0 5
"Very disappointed in this product. I purchased 5 of these for my CCW reqaulifying class. Out of these 5 . 4 jammed the the gun continuely. The instructor even recommended for me to throw them in the trash. I definitely will not use these magazines again."
1.0 5
"I would rate this magazine a zero star if I could. The rounds do feed into the gun properly, causing gun to jam. What a waste of money."
2.0 5
"I too am experiencing mag jams. The first five or more loadings fed as expected...I am now experiencing cartridges that fail to move up (binding). Extra cleaning and oiling of the mag doesn't seem to change anything....is the spring losing its strength. I bought these mags for range use so unreliability is not a life or death situation, just a major bother. Something needs to be done at ProMag to correct this issue"
1.0 5
"I purchased one of theses and had very high hopes, unfortunately it failed to perform and with every round except with the last one or two. From what I was able to see was the clip was not holding the bullet at the proper angle to travel into the chamber and thus causing it to jam."
1.0 5
"Thought this would be the answer to the small mags the are in the Shield. WRONG 2 rounds in and follower tilted down in front. Took apart removed rounds, cleaned and oiled, Baristol, interior, dried re-assembled. 3 rounds front tilted down again. Next stop garbage pail. Not even worth returning. Garbage period"