Originally Posted by DrNefario
Why would you change the design of a gun, just because it's the 43rd century? It's a thing you point that kills people. I don't see why any other shape is going to be better.
Well, think 2000 years in the past and the weapons in use then, which is roughly the equivalent to the time difference between present-day and and the time period of the book. How likely is it that any type of weapon in the future is going to resemble (or function) like a present-day one? The prologue actually refers to a "pistol". You're assuming that the handgun is the pinnacle of personal weaponry - which it might not be at that point in time.
A lot of scifi novels are set several hundred years in the future, when it is still likely that recognizable hand guns would exist, though their ammunition types might differ, given the fact that current projectile ammunition wouldn't be wise to use on spacecraft. But this book is setting the story 2,200 years in future.