Primary Arms Classic 21 mm Micro Reflex Green Dot is a small and lightweight pistol red dot sight designed for beginner shooters. Simple, functional, and durable, it helps improve static and dynamic shooting skills. To ensure fast and precise target acquisition regardless of lighting conditions, it features a 21 × 15 mm lens and a green dot reticle 3 MOA with 10-level brightness adjustment. Anti-reflective coating provides good light transmission, resulting in a clear and distortion-free image. The sight's body is made of 6061 aluminum. The device is equipped with a RMSc standard footprint.
The Primary Classic Series 21 mm Micro sight stands out for its impressive battery life on a single CR2032, reaching up to 40,000 hours. This high level of energy efficiency is achieved in part by the Autolive system, which turns off the sight when the firearm is stationary and activates it when moved. This solution is both convenient and practical, significantly extending battery life. As a result, the operating costs of the sight are virtually zero.
The sight body is made of aluminum. The matte finish protects the metal from oxidation and hardens its surface, ensuring scratch resistance. The sight has a lightweight and durable construction, weighing only 15 grams, so it does not obstruct the field of view. The lenses do not scratch or fog. Brightness adjustment buttons are located on the left side of the body.
Primary Arms is not only about innovative solutions and affordable prices but also meticulous quality control. Trusting its own technologies and solutions, the American company offers a lifetime warranty on its equipment.