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ProMag S&W M&P Shield Magazine .40 S&W 6 Rounds Steel Blued SMI29

SMI 29
Ships from Warehouse 1
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.

Specifications and Features:
ProMag SMI 29
Smith & Wesson M&P Shield
.40 Smith & Wesson
6 Rounds


Item#: MAG-428-155
Total number of Reviews: 1

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4.0 5
"I tried out my 2 new ProMag .40S&W magazines for the S&W Shield. Had 1 failure to feed on first use on one mag. After examination of mag, I sanded with 200 grit sandpaper, the inside feed lips, just to smooth the inside lips radius, where the cartridge has contact on the lips. And smoothed the front top edge of the mag where the the cartridge mouth hung up on the top edge. I used a Dremel tool with a small grinding wheel ,put a flat angle on top,cannot hang up. Now like factory mags,1/2 cost."