Why doesn't anyone offer a 357Sig AR pistol?

[ABNAK]

Are we not talking PDW distances here per the OP? I guess it all depends on the intended role/use of the gun. Only advantages I'm aware of with the .357 Sig over 9mm is it's better on intermediate barriers if memory serves.



Shear velocity, at least in typical handgun rnds, does not appear to dictate terminal ballistics. Per comments above, guess it depends on what one plans to do with it. Flatter shooting would have it's benefits too, but I was strictly talking about PDW/SD/HD uses.

Let's say within 100 yards at the most.

The extra 200-300fps that the 357Sig gets out of a longer barrel as compared to the 9mm would in fact make a significant difference. (Ballistics By the Inch had 9mm topping out in the 1400's while 357Sig hit the 1700's out of the same length, non-handgun barrels)