However, that is not a Lasgun; it is a bolt-action Nynczek Teknologies Karabine Model circa 10317EE, and fires proton clusters (actually, clusters of dense positive ions) at near the speed of light (you do not see any beam shoot out from it, you see a blue flash, a hole in the target, and a thin, whispy trail of steam from the barrel to said hole). In short, it is a particle accelerator weapon, firing with the force of .81-09...that's 81% of 9kJ.
The sword is a powered nano-composite blade that vibrates at ultrasonic frequencies in order to disrupt nano-composite armor (I won't go into detail about what nano-composite means unless you really want me to), plasma fields, etc., and with plasma contained in a hollow centre core to cause maximum wounding effects. In short, you can't duel with these swords (they would shatter each other), but you can cut through just about anything, as deep as the sword will go (yes, they own lightsabers in that sense).
And all of these technologies are feasible, especially considering that the year in the picture is 10414EE.
Also yes, I have thought all of this stuff more thoroughly than any sober person should ever think his drawings through...
Am I making sense?