Blackhawk9,
You can find an image showing the proposed stores carriage stub at
MH-92 Maritime Helicopter
It would be a reasonable assumption that the stub design is derived from that on the Seahawk.
This configuration, for Canada's Sea King replacement, has not yet flown, although it has been reported that the first article is well advanced in assembly. The Canadian contract is, as far is publicly known, Sikorsky's only current contract requiring carriage of heavy stores/external fuel tanks.
You will note, if you look closely, that the stub must attach to the main fuselage over the sponsons. The sponsons are designed to break away at impact, so would be unable to carry significant extra weight.
I'm sure Nick could provide more authoritative info.