Amazon.com : Phottix Battery Grip BG-D3100 for Nikon D3100 and D3200 : Digital Camera Battery Grips : Electronics
200FL Underwater TTL Housing for Nikon D3100 DSLR Cameras
Amazon.com : Wasabi Power MB-D3100 Grip for Nikon D3100/D3200/D5300 : 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
Aputure Battery Vertical Grip BP-D3100, for Nikon D3100 Multi Power Battery Pack - Walmart.com
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
Vertical Battery Grip Replacement BG-2F for Nikon D3100/D3200/D3300 from Japan | eBay
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
Nikon MB-D3100 for Nikon D3100/D3200/D5300 Battery Grip by Wasabi Powe – Wasabi Power
BATTERY GRIP D3100
Wasabi Power Battery Grip for Nikon MB-D3100 and Nikon D3100/D3200/D5300/D5500 610074883609 | eBay
Vertical Battery Grip Holder for Nikon D5300 D3300 D3200 D3100 DSLR EN-EL 14 Battery Powered with IR Remote Control - Walmart.com
Ikelite Nikon D3100 Underwater Housing (#6801.31)
Battery insert or remove on Nikon D3100 DSLR. - YouTube