I plan on having a few main characters that are very well armed. I am trying to figure out the the features that my guns will have.
I may describe caseless ammo. Rounds that are solid and all propellent or projectile. No casings to eject.
I will also have them suppressed. Suppressors preserve the hearing when you need your hearing most. They also suppress flashes very will.
Sights on small arms would work like the HUDs in attack helicopters. Cross hairs in your vision.
They would be made from light polymer materials and simple. As few parts as possible.
--What other ideas?