Aftermarket A77 vertical grips
im going to put my vote in for the Zeikos brand, only 80 bucks, functions just like the sony one. Camera has no problems with the battery shuttle and reading it correctly. Finish is just like the sony alpha finish, the sort of bumped look. Not sure about weather sealing, and the buttons and wheels are all sturdy. Def happy it with instead of spending 300 on a sony one.