If the Ukes can use them that’s fine. But Keltec lost me early on. Quality/reliability was hit and miss and customer service was non-existent. Maybe they’ve picked up the pace but I have to stick with known reliability.
I’ve never owned one. I looked at the SU-16 as a backpack-survival rifle, but when I held it, it just felt too cheap. Most of the newer stuff like the bullpups are illegal here in the people’s republic of kalifornistan.