Complete aiming set comprised of an HS510C Solar Red Circle Dot Sight, spacer insert for Lower 1/3 Co-Witness mount, and HM3X magnifier. The sets include all necessary installation parts and accessories. HS510C is a mid-sized optical aiming device with a 2 MOA-sized dot and a 65-sized circle. Ten levels of brightness and two NV modes are available. The "Shake Awake" system minimizes power loss, while the solar panel grants a secondary power source. Solid QD mount with a Lower 1/3 Co-Witness riser grants means of setting the sight on the desired height. HM3X is a flip-to-side magnifier with a 3x magnification and a QD mount for quick and stable installation. Clear multi-coated lenses guarantee good visibility, optimal magnification, and performance. Both devices are machined out of 6061-T6 aluminum and are IP67-rated. This makes them exceptionally durable and water, fog, dust, and shock-resistant.