How does this sound? Recoil operated carbines that fire: 357 Rem Mag from AK, Mini-30, M1 carbine, or Desert Eagle mags 45 ACP from 1911, Uzi, Grease gun, Mac-10, or Para Ordnance mags 30 Carbine from M1 mags 7.62x25mm Tokarev from PPSH mags 44 Rem Mag AK, Mini-30, or Desert Eagle Mags If such a carbine were produced, what kind of performance would you expect, what would you use it for, and with those in mind, what would you be willing to pay for one? Would you accept greater weight and price for better control and accuracy? And what kind of configuration would you want (solid wood stock vs modular pistol grip, forend, and buttstock), and how important is that? And would it be a significant advantage or drawback to use existing AR furniture? I could see the 44 version used for deer hunting, maybe 357 too, 44, 357, and 45 versions used by law enforcement, and the 30 cal ones used for small game. Any could forseeably be used for plinking and home defense.