That is pretty cool. However, that foregrip is ugly as hell on that gun. Surely they could find something better. I don't need multiple attachment points. Just a place to mount a light and an optics rail on top. And looking closer, I don't like the AR receiver. It is an AR with a lever, not a lever gun that takes mags. Something to think about I guess.
Looking at it it's an AR fore end, so one could swap it out if you don't like M-Lock slots, but M-lok is pretty unobtrusive. I suppose you could put a wood fore-end on there to be super confused.
I was thinking about what you said about the receivers, and while at first blush I agreed, on further thought, I think they did the right thing there. Neither the upper or lower are actually AR parts but since they were using AR mags and ammo, it makes sense to re-use the mature engineering of the AR platform where it works. The magwell geometry is set by the mag, so use the M4 feed ramps and AR mag height, which lets you use AR barrels and fore ends for easy modularity. The bolt head is then pretty much figured out then, and once you use a rotating bolt to interface with the AR barrel, the looks of the front part of the upper receiver are pretty much locked in. Then you just need a proprietary carrier to interface with the lever. It looks like everything in the lower except the take down pins are unique to this gun, but since they needed to be AR adjacent to use the mags and ammo, maximizing the amount of the AR aftermarket that works make sense both from a manufacturing perspective and a sales one.
I wouldn't call it an AR with a lever though. I bet not much behind the barrel nut is actually AR compatible. It is kinda weird looking though. I'm definitely not buying one. Although if I had to choose between the FightLite or the abortion in the OP, I'd go with the FightLite in a hot sec.
Side Note on the OP: Who shot a damn near 6lb 9mm and thought "What this thing really needs is a Brake!"