The Burris BTC Thermal Sight Picatinny Rail Mount is designed to quickly mount the Burris Thermal Clip-On (BTC) in front of your favorite riflescope. It features a QD rail mount with two heights of mounting rings, ensuring ¼ MOA re-mount capability. This mount allows for a smooth transition from rifle to handheld use, making it ideal for AR or flattop mounting options. It is a perfect match for Burris RT-6 and P. E.P. R. mounts, providing versatility and reliability for night hunting. Burris BTC Thermal Sight Picatinny Rail Mount 626620