Meike MK-D600 - Battery grip for Nikon D600 and D610 - Camera Gear
Amazon.com : Battery Grip Kit for Nikon D600 D610 Digital SLR Camera Includes Qty 2 Replacement EN-EL15 Batteries + Vertical Battery Grip : Digital Camera Accessory Kits : Electronics
JINTU Pro Multi Power Vertical Battery Grip holder For Nikon D600 D610 SLR DSLR Camera as MB D14 Power Supply EN EL15|Battery Grips| - AliExpress
Amazon.com : Battery Grip Kit for Nikon D600 D610 Digital SLR Camera Includes Qty 4 Replacement EN-EL15 Batteries + Vertical Battery Grip + Micro Fiber Cleaning Cloth : Digital Camera Accessory Kits : Electronics