Shop › BURRIS THERMAL RIFLESCOPE BTS 35 V3 BURRIS THERMAL RIFLESCOPE BTS 35 V3 $2,499.99 Burris Optics BTS 35 V3, Thermal Optic, 3.2-12.8X, 35mm Objective, 400x300 Resolution, Multiple Digital Reticles, Matte Finish, Black 300603 Quantity: Add To Cart Added! Burris Optics BTS 35 V3, Thermal Optic, 3.2-12.8X, 35mm Objective, 400x300 Resolution, Multiple Digital Reticles, Matte Finish, Black 300603