Sling Mounts Mav 88

My Maverick 88 (security) has the standard black stock with the small nub (whatever its called) and a I've added GGG light rail/sling mount, see pics below. I just bought the Mossberg Padded Hunter Sling. Will I just need to attach it to the stock with a standard swivel mount and directly to the GGG mount on the tube? Or will I need something more? the nub looks tiny. I've never looked to add sling since I've had it.

I think all you need is this front sling stud and the washer that goes with it, both on Mossberg store, that screws into the magazine tube closure. The sling you show has the parts that should then fit into the hole in the front stud and the hole in the rear stock stud.