Yes, you can go whole hog… Or you can simply attach a red or green light, to the accurate rig of your choice and have at it. The majority of rats, will never know the difference. You will eventually “evolve” your setup, or not. Because if it works? Why spend more? For me the major downside to green or red lights on my PCPs has been. Alerting humans to my presence, pesting in my home range at night? An Arken Zulus, neighbors non the wiser. Pesting at a dairy, chicken farm, etc.? A red/green light combo on an accurate airgun will kill many, many rodents.