We haven't actually supplied [LN] with any guns. I would know, I personally handle all tech requests. We gave them a license to use the weapons. We will supply them if they ask, since they've agreed to pay the amount we are asking. If the other houses want to use civilian grade weaponry, we'd be more than happy to sell them weapons too.
Other than our greediness we have a very strong reason for granting them a license. This is our reason. OSI is a company primarily focused on trade. Our headquarters is on Freeport 14 in the Yukon. I think its clear why we gave them permission.
We talked about it for a bit before we did it too. We are well aware that it will carry consequences, its part of the reason it was done.