USO (US Optics) Tsr 1x Red Dot optic used once. Due to my vision issues needed a larger optic. If fast, accurate, and dependable describe what you’re looking for in a red dot, you’ve found it. The TSR-1X offers a true 1X, 5 MOA red dot that makes positive target acquisition a breeze. Designed for tactical use, the TSR-1X features 12 illumination settings, including 3-night vision compatible levels. The wide field of view and unlimited eye relief. Red Dot Size Options: 5 MOA dot. Lens: Multi-Coated 1X. Housing Material: 6061 T6 Aluminum. Illumination Controls: Manual Controls. Illumination Settings: 12 Levels; 3 Nightvision Compatible. Battery: One 3V lithium battery, CR2032. Battery Life: 2 to 3 years. Waterproof & Fogproof. Footprint: Aimpoint Micro T1. Included in box: Low & High Picatinny Mount, Battery, T-10 Torx wrench, Lens Covers, Lens Cloth.