Phottix BG-D600 Battery Grip For Nikon D600 / D610 - OPEN BOX!!! | eBay
D610 now comes with a free MB-D14 battery grip and other Nikon deals *UPDATED* - Nikon Rumors
Amazon.com : Battery Grip Kit for Nikon D600 D610 Digital SLR Camera Includes Vertical Battery Grip + Qty 2 Replacement EN-EL15 Batteries + Rapid AC/DC Charger : Digital Camera Accessory Kits : Electronics
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
Promaster Vertical Control Power Grip for Nikon D600/D610
Meike Battery Grip For Nikon D600 D610 Dslr Camera En-el15 Mb-d14 - Battery Grip - AliExpress
Meike MK-D600 - Battery grip for Nikon D600 and D610 - Camera Gear
Vivitar MB-D14 Pro Series Multi-Power Battery Grip for Nikon D600 & D610 DSLR Camera Camera Batteries & Chargers - Newegg.com