The Burris RT3 Red Dot & C35 V2 Thermal Clip-On is a versatile optic kit that includes the compact RT3 red dot sight with fixed 3x magnification and the BTC35 V2 thermal imaging clip-on. The RT3 offers a small footprint and lightweight design, while the BTC35 V2 features a 1024x768 color OLED screen and a 400x300 VOX sensor with a 50Hz refresh rate. This kit provides seamless adaptability for both daytime and nighttime shooting, making it an excellent choice for hunters and tactical professionals.