HOLOSUN HE507Comp-GR Green Dot Reflex Pistol Sight - Competition Optic

Our review of the HOLOSUN HE507Comp-GR finds it best suited to competitive shooters and serious handgun owners who want a large viewing window and flexible reticle options. The single biggest reason to buy is the Competition Reticle System (CRS) with a precise 2 MOA dot combined with selectable 8/20/32 MOA circles, which speeds target acquisition and allows tailored aiming setups for different stages. Build quality from 7075 aluminum, a 1.1 x 0.87 in objective window, and Shake Awake battery savings complete a package aimed squarely at performance users.

Key Features

• Large objective lens: The 1.1 x 0.87 in window gives a wide field of view for fast situational awareness and easier follow-up shots.
• Competition Reticle System: Multiple reticle components let the shooter choose a 2 MOA dot alone or combine it with 8, 20, or 32 MOA circles to match course-of-fire needs.
• Green Super LED: The 540nm green emitter produces a bright, crisp reticle with high perceived intensity for daylight and indoor use.
• Long battery life: Powered by a CR1632 cell with up to 50,000 hours claimed life, it minimizes downtime and battery changes for regular users.
• Shake Awake technology: Automatic LED deactivation when idle conserves battery, and the sight reactivates instantly with a touch or movement.
• Durable construction: 7075 T6 aluminum housing and anodized finish provide a robust platform with an industry standard footprint.

Who It's For

The HE507Comp-GR is aimed at competition shooters and serious range users who want a large window and flexible reticle configurations to match stages or personal preference. It is also a good fit for defensive-minded shooters who value fast target acquisition and long battery life.

Shooters who prioritize ultralight concealment setups or need an optic specifically tuned for low-profile carry on very compact pistols should compare lower-profile or dedicated micro reflex models; this unit favors performance over minimal height and is built around an industry standard footprint.

Pros & Cons

Pros

• Large objective glass and reflective multilayer coatings deliver clear sight picture and strong reticle visibility.
• CRS offers multiple reticle choices, making the sight adaptable for different competition tasks.
• Long CR1632 battery life and Shake Awake extend operational readiness between battery changes.
• 7075 aluminum housing feels robust and matches industry mounting standards for easy installation.

Cons

• The optic's size and footprint may be larger than some micro sights, making it less ideal for very compact carry pistols.
• Green reticle color is excellent in many conditions but individual preference may vary between green and red options.

Specifications

Our Verdict

The HOLOSUN HE507Comp-GR is a well-built competition-focused pistol sight that delivers a large viewing area, reliable battery life, and a highly useful Competition Reticle System. It represents strong value for shooters who need adaptable aiming options and durable construction, though those seeking the smallest possible footprint for concealment should consider smaller micro reflex models.

Frequently Asked Questions

Is the sight parallax free?
Yes, the HE507Comp-GR is specified as parallax free with unlimited eye relief for fast target acquisition.

What battery does it use and how long does it last?
It uses a CR1632 battery with up to 50,000 hours of claimed battery life, augmented by Shake Awake to extend runtime.

Can I switch reticle components on the fly?
Yes, the Competition Reticle System allows selectable combinations of the 2 MOA dot with 8, 20, or 32 MOA circles to suit shooter preference.