Nikon MB-D15 Multi Battery Power Pack for D7100, D7200 at KEH Camera
Today only: big sale on Vello battery grips for Nikon D7100, D7200, D500, D610 D750, D800 - Nikon Rumors
Battery Grip Bundle F/ Nikon D7100, D7200: Includes MB-D15 Replacement Grip, 2-Pk EN-EL15 Long-Life Batteries, Charger, More - Walmart.com
Amazon.com : Neewer® Vertical Battery Grip for MB-D15 Works with EN-EL15 Battery or 6 Pieces AA Batteries for Nikon D7100 D7200 Digital SLR Camera : Electronics
Nikon MB-N12 Power Battery Pack for Nikon Z8 by Nikon at B&C Camera
Vertical Battery Grip for Nikon D7100 & D7200 (*) — Camera Center