Hey, this has come up before but it’s been awhile.
Basically there are rules and restrictions regarding In App Purchases (IAPs).
At the time we released on Nintendo Switch we weren’t able to offer all our IAPs on Switch. The team do have a review of which IAPs we’re offering on Switch and if we’re able to we will add them in the future.
Nintendo Switch will get all the content the other platforms have eventually, including these Weapons. However, at this stage we don’t have an ETA for this.