2-Pack Grip Sleeve Magazine Adapter for Smith & Wesson M&P 9C / 40C Only, Fits 17-Round 9mm & 15-Round .40 S&W Magazines, Compact Frame, Not for Shield

I bought this for my M&P 9c, so I could have 17 rds instead of the compacts 12. This covered the extended area of the magazine perfectly, with pretty much zero slip when removing and reloading mags. The grip is decent and it does its job. The magazine seats perfectly fine in the firearm and converts the 17 round mags well.

Not oem but still fit and serves there purpose

These worked ok, but had some wiggle when on the gun, even when used on factory mags that are loaded. Personally, having a gun grip that shifts is a no go. The simple fix was to add a little bit of hot glue to the back of the mag where the extender sits to fill the small amount of free space. It is completely clean looking and now it is tight when loaded and feels very sturdy. Definitely better priced then the more expensive xgrips, but if you plan on using your mag in a full size gun as well as in a compact with the extender, i might pay extra looking for the better fit, because my modification makes it hard to have the mags do both well. I also tried them with Promags third party magazines and they are way too loose to be acceptable to me. Gotta go S&W mags..

Perfect fit for my 10 year old M&P 9c extended mag. My original finally cracked and these work perfectly and blend in well. No complaints.

Too tall, do not fit as described

Work perfect. It allows extra room for the grip on extended magazines.

Great replacement

Does work(fit) well for the 40cal mag in a M&P40c frame. It feels and seats great. It does NOT work for the M&P 9 (15 round mag) in the M&P 9c frame.