Swivel mount help

Not sure if this is the right forum, if not I apologize. I'm about to get a Harris bipod for my varmint hunt this fall. I've got a hogue overmolded stock and I'd like some help in finding the right mount. My understanding is that I will utilize the existing swivel mount for the bipod mount and I'll then need to install another swivel mount for my sling? Any help would be greatly appreciated.

My Harris has a swivel built into it for a sling so you don't need a second one.