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Strike Industries M&P 9mm/.40 Cal Magazine Plate SI-EMP-MP9&40-BK Color: Black, Fabric/Material: Steel, 28% Off
Please note that the product in question, SI-EMP-MP9&40-BK, is controlled for export. You will need to create a manual order for our Risk Management and Compliance department to confirm whether a specific product can be exported to a specific location as there are many variables involved.
Installs quickly and easily. I have several full-size mags with the x-grip sleeves so they give a nice full grip with a S&W M&P 9mm Compact (gen. 1). I put the SI mag. extension on a full-size (17rd) mag. and the x=grip sleeve still fits/works with...
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Got several of these bumper style base plate extensions for less than $14 each. So far I've made them function on Ruger SR40 and SR9 series, SW M&P40 and M&P9 series, Walther PPQ M2 9mm (may work on 40sw version but I have no way to verify in person)...
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Got this to work on several different handgun magazines including Walther. Looks like it might work on Echelon mags as well but I haven't tried it yet. So far looks best on Walther PPQ series.
Most Recent Reviews
Best Price
by
Andon,
Verified Owner,
February 4, 2025
This is the best price I could find for a bumper base plate that adds about 5 rounds. The spring doesn't seem to be any thicker or stronger than the SW OEM spring and it's only half a loop longer than the factory one. This fit and functioned on SW MP...
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Product came as described. Due to the current environment they took a while but I got them. The install was super easy and I haven’t had any malfunctions. This product was just what I needed and I’m glad OpticsPlanet had them in stock
This mod can be used with the M&P 9/40 C with minimal modification.
To do this;
Remove backstrap key.
Use hand file -
~ 3/5" across the interior of the backstrap key.
~ 1/8" deep, with sloping/tapering toward the magwell. ( less slope for more...
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Product Info for Strike Industries M&P 9mm/.40 Cal Magazine Plate
TheEMP for M&P 9/40 is an extended magazine plate made for full sized M&P pistols. It adds magazine capacity by +6 to 9mm rounds or +5 to .40 caliber rounds. It was designed to provide smoother and faster magazine reloading. Included is their special steel locking plate, which compared to other magazine extensions on the market, features a hook design which adds extra locking security to increase reliability when fully loaded with rounds.
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