Taurus may be on to something here

[ZERO THEORY]

Correct me if I'm wrong but if all the internal parts are still straight (have to be for that mag to function) then isn't the 'curve' really just a thicker body to create a curve and in which case wouldn't this actually be adding material to what is otherwise a much more slim but flat version? So added weight and thickness to a CCW piece? Sounds like snake oil more than anything but I'm sure in a world where marketing trumps all actual benefits (see RIP ammo for proof) it will sell well.

[Jer]

That's not my point and I'm not sure I'm explaining myself properly. Look at the thickness of the slide in relation to the barrel for instance and now compare that to the thickness of the pistol on either side of the barrel to similar firearms in the class. If the magazine is straight then that means that in order to get the curve they have to add material that otherwise wouldn't be there. It seems that unless the magazine were also curved you are just taking what would be the standard internal plane and just adding more material to the outside to get the curve. So your lines should extend down on either side of the barrel to show where the magazine and fire control group is and then everything on the outside is essentially not critical to the firearm aside from some degree of strength. If more is added than say what an XDs or Shield has then that's added thickness overall and weight even if it does curve. It's still excess. Does that make sense?

[crashdown]

That's not my point and I'm not sure I'm explaining myself properly. Look at the thickness of the slide in relation to the barrel for instance and now compare that to the thickness of the pistol on either side of the barrel to similar firearms in the class. If the magazine is straight then that means that in order to get the curve they have to add material that otherwise wouldn't be there. It seems that unless the magazine were also curved you are just taking what would be the standard internal plain and just adding more material to the outside to get the curve. So your lines should extend down on either side of the barrel to show where the magazine and fire control group is and then everything on the outside is essentially not critical to the firearm aside from some degree of strength. If more is added than say what an XDs or Shield has then that's added thickness overall and weight even if it does curve. It's still excess. Does that make sense?

I think I agree.... Based on the picture above, material on left might be added for structural rigidity, but that's about all.