NEEWER Professional Vertical Battery Grip Replacement for Nikon D3100/

Still waiting for the Nikon original battery grip for D3100 SLR camera that hasn't been released yet? No need to wait any longer! Here is a perfect solution for you! This high quality battery grip is compatible with Nikon D3100 SLR cameras. It has a built in vertical shutter ...Still waiting for the Nikon original battery grip for D3100 SLR camera that hasn't been released yet? No need to wait any longer! Here is a perfect solution for you! This high quality battery grip is compatible with Nikon D3100 SLR cameras. It has a built in vertical shutter release button, and can hold two EN-EL14 rechargeable battery packs.

Additionally, it comes with a signal transferring cable with which you will be able to use a shutter release.