For whatever illogical reasons, they fixate on semi-auto arms.
Since I like options and technical challenges, I wonder what the venerable top-break revolver would look like if chambered in 9mm Luger (a short cartridge) and the design was tweaked to take advantage of modern materials and metal cutting/forming technologies. The benefit of a short cartridge is that the heaviest part of a revolver along its length is the portion that includes the top-strap, cylinder and bottom.
I would be inclined to enlarge and square-off the front of the trigger guard.
|What the guts of a revolver look like after removing grips and side panel.|
I would maximize net-form and near-net form technologies like precision blanking, powered metallurgy and investment casting. I would avoid some of the precision, mating surfaces by inserting polymer "wipers" to keep grit and grime out of the action.
With Computer Aided Design, it might be possible to use one of the exotic copper alloys like C87900 or C87500 to investment cast the frame. These materials melt at a low enough of a temperature that they can be melted in a kiln used to bake ceramics.
CAE can guide the designer into where to locally add more beef to minimize stresses and maximize stiffness. It also provides information about where material can be pared out or eliminated and replaced with thin sheet-metal.
I would use the S&W J-Frame guts as the basis of the action. The patents on the J-Frame expired long ago and it is a proven design. Unlike the image shown above, the J-Frame uses a coil spring for the hammer spring.
I wonder what a 2" or 3" model would weigh, how it would feel and what a reasonable MSRP would be.
Of course, if somebody were casting and assembling it in their private workshop then the question of an MSRP is nonsensical.