This red dot uses the Trijicon RMR footprint standard. Essential info Footprint standard: Trijicon RMR footprint standard Reticle: 6 MOA dot [green] Window size [height x width]: 14.7 x 19.6 mm [0.58 x 0.77"] Total dimensions [length x width x height]: 38.1 x 30.5 x 25.4 mm [1.5 x 1.2 x 1.0"] Holosun HE407COMP-GR-6 is a competition-focused open reflex red dot designed for maximum speed, visibility, and control. With a large viewing window and a bold 6 MOA green dot, it helps you acquire targets faster and track them more naturally during dynamic shooting. Built for speed and fast transitions The large 1.1 × 0.87" window gives you a wide field of view, making transitions between targets smoother and more intuitive. The 6 MOA green dot is easy to pick up instantly, especially in bright conditions, helping you stay fast and confident under pressure. Green dot advantage The green reticle offers improved visibility for many shooters compared to red, especially in daylight or complex lighting conditions. It stands out clearly against the target, reducing eye strain and improving tracking speed. Always ready, no wasted battery Shake Awake technology automatically activates the optic when movement is detected and powers it down when idle. Memory Mode restores your last brightness setting, so the sight is always ready exactly how you left it. Quick battery change without losing zero The side-loading CR1632 battery tray allows fast replacement without removing the optic, so you keep your zero and avoid unnecessary downtime. Durable and competition-proven Machined from 7075-T6 aluminum and finished with hard anodizing, the optic is built to withstand heavy use. With IP67 water resistance and strong vibration resistance, it performs reliably even in demanding environments. :contentReference[oaicite:0]{index=0} Key advantages Large viewing window for faster target transitions 6 MOA green dot for instant visibility and speed RMR footprint for wide compatibility Shake Awake with memory function Side battery tray – no need to remove the optic Lightweight but extremely durable aluminum housing Designed specifically for competition and high-speed shooting Specification Magnification: 1x Reticle: 6 MOA Dot Reticle Color: Green Window Size: 1.1 x 0.87 in Parallax: Free Eye Relief: Unlimited Lens Coating: Multi-Coated Power Source: Battery Battery Type: CR1632 Brightness Settings: 10 (8 daylight + 2 night vision) Housing Material: 7075-T6 Aluminum Finish: Hard Anodize Adjustment per Click: 1 MOA Windage & Elevation Range: ±30 MOA Water Resistance: IP67 Vibration Resistance: 5000G Dimensions: 1.8 x 1.3 x 1.3 in Weight: 1.7 oz