Guide

Holosun 407COMP Green 6 MOA Open Pistol Sight (HE407COMP-GR-6): Specs, Footprint, and Real-World Performance

Holosun 407COMP Green 6 MOA Open Pistol Sight (HE407COMP-GR-6): Specs, Footprint, and Real-World Performance

Introduction

The Holosun 407COMP Green Dot Open Pistol Sight 6 MOA 1X Anodized Black (MPN: HE407COMP-GR-6, UPC: 810047074496) is purpose-built for shooters who want fast dot pickup, a large competition-style window, and hard-use durability without extra reticle complexity. Its 6 MOA green dot is a deliberate choice: it’s quick to find during the draw and easy to track through recoil, making it a strong fit for defensive pistols, duty guns, and especially match setups where speed matters.

Unlike smaller “carry” optics, the 407COMP’s COMP window gives you more visual real estate for transitions and recoil management—while still keeping the sight picture clean and uncluttered.

Key Features and Specifications

Below are the core features that define the Holosun 407COMP Green 6 MOA Open Pistol Sight (HE407COMP-GR-6), with an emphasis on what matters on a slide-mounted handgun.

Optics & Reticle

  • Reticle: 6 MOA dot (green)
  • Magnification: True 1× for natural, both-eyes-open shooting
  • Viewing window: 1.1 × 0.87 in (large window optimized for fast acquisition)
  • Parallax-free design and unlimited eye relief (typical of pistol reflex sights)

Why 6 MOA? On pistols, a larger dot tends to appear “steadier” in motion and is easier to catch on presentation. For most shooters, it’s a practical advantage inside typical handgun distances—especially when your priority is speed rather than bullseye-style precision.

Controls, Modes, and Brightness

  • Shake Awake with Memory Mode (the optic wakes with motion and returns to your last brightness setting)
  • Brightness settings: 8 daylight + 4 night-vision compatible settings

For a pistol that’s carried or staged for duty/home defense, Shake Awake is a real quality-of-life feature: you’re not constantly powering the optic on/off, and you’re not guessing which brightness you last used.

Power & Battery System

  • Battery: CR1632
  • Battery tray: Side-loading tray (battery can be replaced without removing the optic, helping preserve zero)
  • Rated battery life: up to 50,000 hours (runtime varies by brightness and use patterns)

The side-tray design is a practical advantage versus bottom-load optics: fewer re-mount cycles means fewer chances to disturb your setup.

Durability & Environmental Ratings

  • Housing: 7075-T6 aluminum
  • Finish: Anodized (black)
  • Waterproof rating: IP67
  • Vibration rating: 5000G
  • Weight: 1.7 oz

This combination—7075-T6, IP67, and a high vibration rating—supports what most pistol-dot users care about: staying reliable through repeated slide cycling and high round counts.

Adjustments (Zeroing)

  • Adjustment per click: 1 MOA
  • Windage/Elevation travel: ±30 MOA

A 1 MOA click value is a nice middle ground on pistols: it’s fine enough to dial a precise zero, but not so fine that you’re clicking all day.

Footprint & Mounting Considerations

The HE407COMP line is commonly treated as RMR-pattern compatible in terms of mounting ecosystem. Practically, that means many slides and plates marketed for “RMR footprint” optics will be the starting point for a 407COMP install.

Important practical note: even within “RMR footprint” optics, tolerances vary between slides, plates, and optics. For best results, use a quality plate (if needed), confirm screw length, torque properly, and verify full seating with no rocking.

Practical Applications

The Holosun 407COMP Green 6 MOA Open Pistol Sight (HE407COMP-GR-6) shines when the shooter prioritizes speed, tracking, and easy dot acquisition.

Competition: USPSA / IPSC / Steel

  • The large window helps you “stay in the glass” during recoil and makes it easier to reacquire the dot during fast splits.
  • The 6 MOA dot is quick to pick up on hard entries/exits and transitions.

If you’re building a match pistol, this optic is aligned with the modern trend: larger windows and brighter dots that reduce visual hunting.

Defensive / Duty Use

  • Shake Awake + Memory Mode supports consistent readiness.
  • Green dot visibility can be advantageous in bright conditions and on varied backgrounds.
  • IP67 + robust housing are meaningful when the optic may see sweat, rain, lint, and constant handling.

Training and Skill Development

A pistol dot exposes inefficiencies in presentation and grip immediately. With the 407COMP’s bigger window, newer dot shooters often find it easier to learn the “dot path” through recoil without feeling like they’re looking through a small mailbox.

Expert Analysis

From a product-selection standpoint, the 407COMP’s role is clear: it’s a simplified, speed-focused COMP optic.

Who should choose this model?

Choose the Holosun 407COMP Green 6 MOA Open Pistol Sight (HE407COMP-GR-6) if you:

  • Prefer a single-dot reticle (less visual clutter than multi-reticle systems)
  • Want a bigger window than typical carry optics
  • Value side-tray battery changes to help preserve zero
  • Run a pistol for matches, training volume, or duty-style use

When a different optic might be better

You might prefer another model if:

  • You want a smaller, more concealment-optimized optic (smaller footprint optics ride easier on slimline pistols)
  • You strongly prefer circle-dot reticles for indexing at speed
  • You need a specific proprietary footprint to direct-mount to a particular factory slide system

Setup tips (performance-focused)

  • Confirm screw length before final install. Too long can bind internals; too short can compromise retention.
  • Use a torque wrench to manufacturer/plate specs and apply appropriate threadlocker (where recommended).
  • After zeroing, shoot a confirmation group at your practical distance (many shooters verify at 10–25 yards depending on application).

Conclusion

The Holosun 407COMP Green Dot Open Pistol Sight 6 MOA 1X Anodized Black is an excellent fit for shooters who want a clean, bold green dot, a competition-sized window, and serious durability features in a straightforward package. With Shake Awake, a side-tray CR1632 battery, 7075-T6 construction, and a large 1.1 × 0.87 inch window, it’s designed to help you shoot faster and track better—without overcomplicating the sight picture.

If your priority is quick acquisition and recoil-friendly tracking (especially in match or high-tempo training), this 6 MOA green-dot configuration is one of the most practical setups in the COMP-style pistol optic category.

Sources

Holosun Technologies. "HE407COMP-GR6." Holosun. (accessed March 31, 2026). https://www.holosun.com/products/pistol-sights/407comp/he407comp-gr6.html Holosun (EU). "HS/HE407COMP-RD6 /-GD6 /-GR6 Manual (HS_407-507COMP_manual.pdf)." Holosun.eu. (published March 2026). https://www.holosun.eu/media/43/64/77/1773054881/HS_407-507COMP_manual.pdf