Nikon D3100 14.2MP Digital Camera Black Body"Excellent"FREE SHIPPING JAPAN#215 | eBay
Hi Capacity Lithium Ion Battery Pack for Nikon D3100 D3200 D3300 | eBay
Pg-d3100 Replacement Battery Grip by Vivitar for Nikon D3100 SLR 2 Batteries for sale online | eBay
Wasabi Power Battery Grip for Nikon MB-D3100 and Nikon D3100/D3200/D5300/D5500 | eBay
New!!! Jupio (JBG-N003) Battery Grip for Nikon D3100, D3200, D3300, and D5300 | eBay
Nikon D3100 Digital SLR Camera Body, NO Lens 18208254729 | eBay
Amazon.com : BIG MIKE'S ELECTRONICS Battery Grip Kit for Nikon D3100 D3200 D3300 D5300 Digital SLR Camera Includes Qty 2 Replacement EN-EL14 Batteries + Vertical Battery Grip + More!! : 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