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HOLOSUN 407C/507C-X2 Series, 2 MOA Dot, 32 MOA Circle Dot Options, 7075 Aluminum, Open, Solar, Shake Awake, RMR Footprint (Red, Green Reticle) (Black, Burnt Bronze)

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Color: Black


Reticle type: Multi-Reticle - Red


Features

  • HOLOSUN RED DOT SIGHT - The HS507C X2 is an open reflex sight designed for full-sized pistol applications; This handgun sight features Lock Mode that locks the buttons preventing inadvertent setting changes; T10 L Key, CR1632 Battery, Lens Cloth, and User Manual are included
  • HIGH PERFORMANCE - The HS507C X2 pistol sight features Holosun's Red Super LED with up to 50k hour battery life, Solar Failsafe, Multi-Reticle System, and Shake Awake; The durable housing is made from 7075 Aluminum, uses an industry standard footprint, and houses the 1632 battery in a side-mounted tray for easy replacement when needed
  • SHAKE AWAKE TECHNOLOGY - Extends battery life by deactivating the optic's LED while not in use; Shake Awake offers settings from 10 minutes to 12 hours depending on the model and can be deactivated altogether if preferred; The slightest touch of the optic instantly reactivates the LED so your Holosun reflex sight for pistol is ready when needed
  • SOLAR FAILSAFE - If your battery fails, this red dot sight for pistol has a backup power source when natural or artificial light is available; Solar Failsafe is activated while in Auto Mode where reticle intensity is automatically adjusted: in brighter conditions, you have a brighter reticle and in lower-light conditions, the reticle will step down in intensity to match any lighting conditions
  • SPECIFICATION - Reticle: Red 2 MOA Dot & 32 MOA Circle; Light Wavelength: 650nm; Magnification: 1x; Parallax Free & Unlimited Eye Relief; Power Source: Solar & Battery; Battery Type: CR1632; Battery Life (Hours): 50000; Brightness Setting: 10 DL & 2 NV Compatible; Window Size: 0.63x0.91; Housing Material: 7075 T6 Aluminum; Surface Finish: Anodize; Adjustment per Click: 1 MOA; W&E Travel Range: 50 MOA

Description

The Holosun 407C/507C X2 series is an open reflex sight engineered for full- sized and compact pistol applications, offering advanced features in a durable, lightweight design. Whether for duty use, competition, or everyday carry, the 407/507C X2 delivers the reliability and precision demanded by serious shooters. At the core of the 407C (Dot-Only) / 507C X2 (Multi-Reticle) is Holosun’s innovative Multi-Reticle System (MRS), allowing users to seamlessly switch between a precision 2 MOA dot, a 32 MOA circle, or a combination of both to adapt to their shooting needs. Powered by Holosun’s Red Super LED, the sight provides up to 50,000 hours of battery life on setting 6 and includes Shake Awake technology, which automatically powers the optic on with motion and off when idle to conserve battery life. The addition of Lock Mode, originally developed for Holosun’s law enforcement models, prevents accidental setting changes by locking the side control buttons—an ideal feature for defensive and professional use. The Solar Failsafe backup ensures your optic stays operational in the event of battery failure by automatically switching to solar power in daylight conditions. Constructed from high- strength 7075-T6 aluminum with a hard anodized finish, the 407/507C X2 is built to withstand harsh conditions. It features an industry-standard RMR footprint and a side-mounted battery tray for easy battery replacement without unmounting the optic.

Specs & Other Info

Specification Details
Brand HOLOSUN
Color Black
Design HS507C-X2 Classic Multi Reticle
Intended Use Hunting, Tactical
Weight 0.09 Pounds (approx. 40.8 grams)
Construction Material Durable Metal Alloy
Optical Magnification 1x
Firearm Compatibility Most Handgun Models
Mounting System Picatinny/Weaver Mount Compatible
Item Dimensions 5 x 4 x 4 inches
Warranty Limited Lifetime Warranty from Manufacturer
Model Series CIRCLE DOT SOLAR (HS507C-X2)
User Demographic Unisex Adult
Manufactured by Holosun
Manufacturer Part Number HS507C-X2
Package Contents Red Dot Sight
Release Date August 18, 2020

Frequently asked questions

The HOLOSUN HE507C-GR X2 is designed primarily for full-sized handguns and is suitable for both competitive shooting and self-defense. It is a reflex sight that offers users fast target acquisition and an easy aiming process thanks to its 2 MOA dot and 32 MOA circle reticle.

The Shake-Awake feature on the HOLOSUN HE507C-GR X2 automatically activates the sight when it detects motion. When the sight is not moved for a set period, it goes into a sleep mode to conserve battery life. Upon movement, the sight instantly turns back on to the last brightness setting used.

The solar failsafe in the HOLOSUN HE507C-GR X2 allows the sight to remain powered in the absence of battery power, making use of ambient light to operate the reticle. This feature offers reliability and an extended operational life, ensuring that the sight remains functional in a variety of lighting conditions.

Yes, the HOLOSUN HE507C-GR X2 is described as parallax-free, meaning that the reticle will remain in place even as the user's eye position shifts. This helps in maintaining accuracy and precision because the point of aim is consistent regardless of eye position relative to the sight.

Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.


The HOLOSUN HE507C-GR X2 / HS507C X2 Open Reflex Pistol Sight garners high praise for its advanced features and reliability. Users appreciate the versatile reticle options, the Shake-Awake technology that extends battery life, and the Solar Failsafe which keeps the sight operational in low-battery situations. The product is considered durable and is favored for a variety of shooting activities, from competitive sport to law enforcement. Despite its many advantages, some users note a learning curve in quickly acquiring the dot and a slight tint in the glass, though these are not deal-breakers.

Pros

  • 🎯 Versatile 2 MOA dot and 32 MOA circle reticle
  • 🔋 Innovative Shake-Awake technology for extended battery life
  • ☀️ Solar Failsafe feature ensures operations under low battery
  • 🛠️ Durable aluminum construction and parallax-free design
  • 👌 Easy to zero and user-friendly controls
  • 💾 Side access to the battery compartment prevents zero loss during swaps

Cons

  • 🔍 Minor optical distortion when not viewed head-on
  • 🌈 Slight greenish-blue hue on the glass could be distracting
  • 🎯 Learning curve for quick dot acquisition
  • 🚫 Auto-brightness can be dimmer than some users prefer

Should I Buy It?

If you are looking for a reliable, advanced optic for your handgun with versatile features, the HOLOSUN HE507C-GR X2 / HS507C X2 comes highly recommended. While there may be a short period of adjustment to get used to the reflex sight, its benefits far outweigh the minor critiques. This sight appears to be a smart buy for both experienced shooters and those transitioning from iron sights, seeking improved accuracy and performance.


  • Turns Your Pistol Into a Sci-Fi Movie Prop (In a Good Way)
Color: Black Reticle type: Multi-Reticle - Green
The HOLOSUN 507C X2 is the real deal. The shake-awake works instantly, the solar backup is clutch, and the reticle options (2 MOA dot or 32 MOA circle) make target acquisition stupid easy. The green dot is crisp, bright, and doesn’t wash out in sunlight. The aluminum housing feels tough enough to survive a small meteor strike, and once it’s zeroed, it stays zeroed. Parallax-free, super clear glass, and the battery basically lasts longer than most New Year’s resolutions. If you want a rock-solid optic that performs way above its price, this is it. Your handgun will feel upgraded the moment you mount it. ... show more
Reviewed in the United States on November 21, 2025 by Chris

  • Some of the best dollar to performance optics out there
Color: Black Reticle type: Multi-Reticle - Red
I have never had a problem with performance, clarity or durability from any of their products. Mounted on everything from 12ga to 22lr, pistol, rifles..zero problems. Its a perfect optic for east coast deer hunting with sub 200m distances on a lever gun or 300blk/450/x39 SBR. The 2moa dot allows fine aiming without the dot covering 90% of your target at 100m and the circle allows "eyeballometer" windage and elevation adjustments. ... show more
Reviewed in the United States on February 26, 2026 by Doc-14

  • Great EDC Red Dot
Color: Black Reticle type: 2 MOA Dot - Red
It's a Holosun, I expected it to be very well made, and my expectations were met, its a great red dot, the 2 MOA dot isn't as difficult to find as other would suggest just takes some practice with it, looks great on my EDC though and for the price it is definitely worth it.
Reviewed in the United States on March 15, 2026 by Devan Paulson

  • Very easy to install and clear.
Color: Black Reticle type: 2 MOA Dot - Red
Great optic. Highly recommend.
Reviewed in the United States on May 19, 2026 by Paul Shouse

  • Another quality product from Holosun
Color: Black Reticle type: Multi-Reticle - Green
The reflex sight is very nice in green. I like the solar failsafe as well, battery life should not be an issue ever.
Reviewed in the United States on May 5, 2026 by Bruce Doolittle

  • Rock solid!
Color: Black Reticle type: 2 MOA Dot - Red
Typical Holosun quality and function. I mounted mine offset for my AR backup sight. Great price & performance!
Reviewed in the United States on April 12, 2026 by Kelly McGinnis

  • Must have for any handgun
Color: Black Reticle type: 2 MOA Dot - Red
I recently mounted the HOLOSUN 407C/507C-X2 on my Glock 19, and it works perfectly. The fitment is secure, and it holds zero flawlessly even after several hundred rounds at the range. The build quality is rugged, and the side-loading battery tray is a huge plus since you don't have to remove the optic to swap batteries. The reticle is crisp, and the solar failsafe provides great peace of mind. If you’re looking for a reliable, duty-ready red dot for your Glock, this is easily one of the best bangs for your buck. Mounting Tip: To ensure it stays rock-solid on your G19, I highly recommend using a tiny drop of blue Loctite on the mounting screws and using a torque wrench to hit the manufacturer's spec (usually around 15 inch-pounds). ... show more
Reviewed in the United States on April 12, 2026 by Kyle Akasaka

  • Crisp reticle, shake awake, solar charger. Too dim in sunlight
Color: Black Reticle type: Multi-Reticle - Red
Great pistol optic. Very clear in lowlight and darkness. Very crisp reticle and took very little adjustment. BUT…reticle washes out in bright sunlight. Love the auto brightness feature, and the battery backup solar charger. But it does not have a setting quite bright enough. Looking into other options. ... show more
Reviewed in the United States on March 29, 2026 by Jason

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