I haven't tried the above, but I do have a Streamlight TLR4G green laser/ light combo for my 45CT. Works well and goes for about $180 on sale.
https://www.amazon.com/Streamlight-69245-Tactical-Integrated-Operating/dp/B00HNFUU0K
https://www.amazon.com/Streamlight-69245-Tactical-Integrated-Operating/dp/B00HNFUU0K