Neewer Professional Vertical Battery Grip Replacement for Nikon D3100/D3200/ D3300/D5300 SLR Digital Camera, Works with 1 or 2 Pieces EN-EL14 Batteries
Jupio Battery Grip for Nikon D3100, D3200, D3300, and JBG-N003
Pg-d3100 Replacement Battery Grip by Vivitar for Nikon D3100 SLR 2 Batteries for sale online | eBay
Andoer Vertical Battery Grip Holder for Nikon D5300 D3300 D3200 D3100 DSLR Camera EN-EL 14 Battery Powered with IR Remote Control