These happen to be Optronics Night Blasters bought many years ago. They can still be bought on-line several places and now they have many newer models. The one on the carbine in the pictures is a self contained narrow beam 100 yard model with a battery pack you wear on your belt, on the XP-100 is a 350 yard model and I also have a 250 yard model that also plugs into the truck same as the 350. The 100's battery can be recharged both on 120VAC and off the vehicles 12 VDC. Makes it real handy to just plug it in while traveling between jump off places for night stalks to keep it "topped off". Longer reange models are now available with these batterey packs too. All three have forestock velro mounted switches to turn them on/off with your off hand. I like the 350 the best because it has an adjustable blue light beam that can be instantly tailored to fit every situation. It will pick up eye flash way, way past 350 yards and literally turn night into day. The best for identifying species with anarrow beam a long ways away, but can be turned to wide angle in a flash for a pred on the run. The red lenses are personal choice and would depend on the situation/preds where hunting. I never had any problems by not using them most of the time, but they would be great for preds that are real spooky. There are other more expensive scope spotlights out there... a pard uses a Lightforce Striker. Nice light (although big and bulky), but at $250+ the Optronics at $50 or less are a steal and do the job just fine. My main use when I bought these was to do night time jack and badger ADC for ranchers/farmers, not mainly for predators. I had always just spotlighted predators with hand held spots that plug into the truck. These do work better for preds though as it frees up both hands (important when you only call them with mouth calls like I do) and keeps the firearm on target as you follow it in.
