The only .45 ACP carbines with any sort of commercial viability have been Thompsons, and they're bought for historical interest, at prices that reflect "toy" instead of "tool."
Sound like something folks would like to own for plinking and home defense, maybe even short-range deer or hog hunting?
No chance, at least for me.
Ammo is too expensive for plinking. Gun has neither the fun factor of a semiauto, nor the nostalgic appeal of extant lever guns.
A pump carbine has no appeal at all, except perhaps for CAS competition, where this one couldn't be used, or maybe a 7600 in a real caliber (e.g. .308 and up) for hunting.
For HD I have a .45 pistol that has similar ballistics in a much smaller package, and twice the ammo capacity in each mag.
Deer and hogs? There are many better guns already around, including proven revolver-cartridge lever guns that blow a .45ACP carbine out of the water, and will shoot the lightest and the heaviest loads around (.45ACP+P is a great little pistol round, but it's weak compared to pistol-caliber lever-action hunting rounds).
.45 doesn't gain enough from a longer barrel. I can hit anything I need to, in my house or yard, with my pistol, for defense, so without better ballistics, why bother with a carbine of any kind?
The .45ACP+P drops about a foot at 100 yards when sighted in at 25/50. It's just not a long gun round.
Don't mean to sound negative, but note that the .45 ACP carbine has been a market failure in the US. The pump rifle has also never taken hold, except in tiny niches; Browning quit making theirs, and only Remington remains, with the exception of old-West replicas for CAS.
I wouldn't want to see you bet the farm on this product!
Maybe you could sell a few pump .45s in England, where few other guns are legal, but that's a tiny market.
OTOH if as many guns and types of guns are banned in the US, as in England and Brazil combined, this could be viable. Americans will always want guns, and if they can't get anything better, they'll buy a .45 pump carbine.
