Amazon.com : Phottix Battery Grip BG-D3100 for Nikon D3100 and D3200 : Digital Camera Battery Grips : Electronics
Amazon.com: BM Premium Battery Grip Kit for Nikon D3100 D3200 D3300 D5300 Digital SLR Camera - Includes BG-N12 Battery Grip Replacement + Qty 1 EN-EL14 Battery + Battery Charger : Electronics
Amazon.com : Phottix Battery Grip BG-D3100 for Nikon D3100 and D3200 : Digital Camera Battery Grips : Electronics
Amazon.com : Neewer Professional Vertical Battery Grip Replacement for Nikon D3100/D3200/D3300/D5300 SLR Digital Camera, Works with 1 or 2 Pieces EN-EL14 Batteries : Electronics
Amazon.com : Nikon MB-D17 Multi Battery Power Pack/Grip for D500 : Electronics
Amazon.com : Neewer Professional Vertical Battery Grip Work with EN-EL14A Rechargeable Battery compatible with Nikon D5600 D5500 DSLR Camera (Battery Not Included) : Electronics
Amazon.com : Meike Vertical Battery Grip for Nikon D5500 Built-in 2.4G LCD Display Wireless Remote Control Compatible with EN-EL14 Batteries : Electronics
Amazon.com : Neewer Professional Vertical Battery Grip Replacement for Nikon D3100/D3200/D3300/D5300 SLR Digital Camera, Works with 1 or 2 Pieces EN-EL14 Batteries : Electronics
Amazon.com : Neewer Professional Vertical Battery Grip Replacement for Nikon D3100/D3200/D3300/D5300 SLR Digital Camera, Works with 1 or 2 Pieces EN-EL14 Batteries : Electronics
Amazon.com : Neewer Battery Grip Pack Replacement for Nikon MB-D16 compatible with EN-EL15 Battery for Nikon D750 DSLR Camera : Electronics