Be weary...I thought I'd save a few bucks and get an aftermarket grip for my D300s, worked fine for a couple months and then in the middle of a shoot the camera wouldn't fire, from the grip release or the camera. I had to remove the grip, take the battery out of the camera and wait a few seconds before powering it back on.

After that I bought Nikon grips ever since. Had the MBD-10 on my D300s for well over a year, no problems...and the MBD-11 on my D7000 is fantastic.

There are little things to look out for on aftermarket grips...build quality being one, but another is that the battery tray does not positively hold the battery with anything other than a friction click. The Nikon brand has a detent in the tray that pops up to hold the battery in place.

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