Not so long ago I marvelled at how NiteSite (remember that company?) enabled me to shoot rats and rabbits in the dark thanks to its Viper infrared system.
All I had to do was put a rubber tube on the end of my scope and attach a special infrared camera to it. Then put a plastic bracket around the scope and screw in a combined infrared (IR) illuminator and screen to that. Then use a velcro strap to attach a battery somewhere on my rifle. And then finally plug it all together, make sure the cables were out of the way and wouldn’t get pulled out and give everything a wiggle to line it up.
Simple. It worked though, despite having to adopt a sit up and beg shooting style with the butt of the