A little birdie told me. (@ bandaidsandbattlestaves)
Justin's slowly getting used to SHIELD agents being in and out of his company. They were keeping an eye on him close enough he was basically under a microscope and he accepted that, but after a while they started buying his stuff too.
Not only handguns, but custom weaponry, and finally (glory hallelujah) an organization put some research money into the armor fabric they'd been working with (that the DoD had shown next to no interest in, in spite of some impressive testing).
So another SHIELD specialist showing up for a personal meeting just made Justin figure he could actually have a fun project on the books.
"Afternoon. I'm Justin Hammer, what brings you to my office, Miss...?"