This is an 11 round Flush Fit Magazine for a XDM 40 S&W 3.8 Compact pistol.
I've purchased 2 of these 11rd mags for my XDM40c, along with the one that came with the gun. These are OEM Springfield factory mags, and shipped in branded packaging.
The mag springs are initially stiff but break in smoothly. Zero malfunctions to report after approximately 100 rounds through each.
If you have big hands, I highly recommend an aftermarket extended baseplate I use Pearce to allow a full firing grip`;` my groups noticeably tightened up when I installed them. I love the polished stainless finish, I think it's superior to either Sig or S&W mag finishes. It seems to be somewhat self lubricious as well, allowing easier insertion and drop free.
This was the lowest price I found anywhere. If you need additional compact xdm mag, look no further.