---
product_id: 549614448
title: "Holosun HE509-RD Enclosed Solar Red Dot Sight w/507C Mounting Plate-ACSS Vulcan"
brand: "primary arms"
price: "VT182079"
currency: VUV
in_stock: true
reviews_count: 8
category: "Primary Arms"
url: https://www.desertcart.vu/products/549614448-holosun-he509-rd-enclosed-solar-red-dot-sight-w-507c
store_origin: VU
region: Vanuatu
---

# ACSS Vulcan reticle 20,000 hrs battery life Solar Failsafe tech Holosun HE509-RD Enclosed Solar Red Dot Sight w/507C Mounting Plate-ACSS Vulcan

**Brand:** primary arms
**Price:** VT182079
**Availability:** ✅ In Stock

## Summary

> 🎯 Elevate your aim with smart solar power and precision reticle—never miss the shot or the moment.

## Quick Answers

- **What is this?** Holosun HE509-RD Enclosed Solar Red Dot Sight w/507C Mounting Plate-ACSS Vulcan by primary arms
- **How much does it cost?** VT182079 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/549614448-holosun-he509-rd-enclosed-solar-red-dot-sight-w-507c)

## Best For

- primary arms enthusiasts

## Why This Product

- Trusted primary arms brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Battery Longevity:** Up to 20,000 hours of continuous use keeps you mission-ready without the hassle of frequent changes.
- • **Seamless Mount Compatibility:** Fits most popular handgun slide cuts with the 507C adapter plate, ensuring effortless installation on your favorite pistols.
- • **Precision ACSS Vulcan Reticle:** Dynamic circle and chevron design offers intuitive aiming and distance gauging for faster target acquisition.
- • **Rugged Enclosed Emitter Design:** Durable titanium housing protects against dust, rain, and impact—built to endure your toughest training and carry demands.
- • **Smart Solar-Powered Illumination:** Harnesses ambient light with Solar Failsafe and Shake Awake tech for adaptive brightness and instant activation.

## Overview

The Holosun HE509-RD is a cutting-edge enclosed red dot sight featuring a solar-powered LED with 12 brightness settings and a patented ACSS Vulcan reticle. Designed for durability and precision, it offers up to 20,000 hours of battery life, Shake Awake technology for instant readiness, and broad compatibility with popular handgun mounts. Its rugged aluminum housing and enclosed emitter ensure reliable performance in all conditions, making it the ultimate optic for concealed carry and tactical training.

## Description

Notes: The adapter plate for the "-R" version is compatible with the most popular aftermarket slide cut in the industry. It is the same footprint as the Holosun 507C, making it compatible with most plate systems found on factory optics ready guns like the Walther PDP, S&W M&P C.O.R.E., CZ Optics Ready, Agency Arms AOS, FN 509 MRD, and Springfield Armory XDM Elite series handguns. The included 509 adapter plate is not compatible with ZEV or Shadow Systems style RMR interfaces. The 509 ACSS model does not share the same footprint as the 509T (non-ACSS models) and therefore is incompatible with aftermarket mounting solutions and custom cut slides for the 509T (non-ACSS models). The ACSS Vulcan reticle provides a large circle guiding the eyes towards the 10 MOA center chevron. If you are off-center, a portion of this outer circle will appear in the window to give you an instant reference on how to get centered. The circle phases out of the sight window completely when the center chevron is properly aligned in the sight window. Don't need the circle? It can be easily deactivated. The Holosun HE509 Red Dot Sight uses Solar Failsafe technology to power the optic and uses patented Shake Awake technology which senses motion to power the sight on and off. In addition, it “recalls” your last setting and makes sure you don’t lose those customized settings once the sight system turns off. The Holosun HE509 Red Dot Sight offers up to 20,000 hours of battery life. All versions of the Holosun Red Dot Sight system are projected from the same LED, so you don’t have to worry about having to re-zero when changing reticles. NOTE: This optic is not intended to allow co-witness of fixed iron sights EXPORT CONTROLLED ITEMS: These items are controlled for export and may require an export license from the U.S. Government. Buyer acknowledges that Buyer is responsible for obtaining all export licensing authorizations and filing all export documents prior to export from the United States.

Review: The one optic to rule them all. - Fantastic optic! No other optic comes close to it's ease of aiming in canted or angled offset aiming because of the 250 MOA ring with a chevron. Glass is so crisp that it helps with my Astigmatism. Using various Glock types, I've ran through thousands of 9mm .40 & 10mm rounds with zero optic issues. Holosun (maker of the optic) & Primary Arms (inventor of the large ring reticle) knocked it out the ball park with this one.
Review: No other red dots compare - So I was vastly skeptical about trying this HoloSun 509 ACSS red Vulcan reticle compared to my other reflex red dots because I wasnt sure how it would function on my P320 XCompact but also because I didn't want a gawkingly huge optic on my concealed carry. This thing never let me down at the range or in the field and looks absolutely amazing. The reticle doesn't get washed out in bright light because it utilizes the solar panels with the battery to automatically brighten the reticle or dim it when needed. You can brighten it dim it manually as well if you'd like. The reticle shuts off after 10mins of non-use and incporates shake-awake technology so it comes on when you pull it up and out of your holster. The chevron can be used to gauge your distance without guessing while aiming high for longer distances. It comes sighted in from the manufacturer and I tested that out with my bore sighter and again at the range. At 25yrds I hit 40/50 shots in my small orange/black target with slow firing. At faster pace firing at the same range I still hit between the 10-8 on the green B27 target. Then repeated the same fire rate on a single white sheet of paper. The optic is deadly and very fast to acquire target. Much faster than align rear and front iron sights, which I've done for over 30yrs. At the very tip of the chevron it's zeroed at 7 and 25yrds. At the inside bottom of the tip it hits 50yrds and between the two arms of the chevron at the bottom is 100yrds, beyond that it's a guess but with a pistol you'll never shoot that far. I love that the emitter is enclosed so it can't be obstructed by anything like snow, rain, dirt, etc. You can rack your gun using the optic off anything, even hard surfaces and really smack this thing around, drop it, bang it around and it still holds zero and works flawlessly. It's the perfect size for pistols and doesnt look big on the gun! It makes anyone's pistol more deadly and made my pistol look menacing! I love this thing! It comes with adjustment tools for the reticle, adapter plate and mounting tools. I had C&H precision send me a filler plate in place of the adapter plate to fill any tiny gaps between my slide and the optic. Phenomenal optic! I'll be getting one for each of my pistols and maybe even my shotgun. See the pictures for more details.

## Features

- Standard / 507c Adapter Plate
- Reticle: ACSS Vulcan
- Illumination Type: LED
- Illumination Color: Red
- Brightness Settings: 12

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09YFMSFDK |
| Best Sellers Rank | #174,556 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #452 in Gun Sights |
| Brand Name | Primary Arms |
| Color | Red |
| Compatible Devices | Handgun |
| Customer Reviews | 4.9 4.9 out of 5 stars (17) |
| Item Dimensions L x W x H | 1.78"L x 1.22"W x 1.14"H |
| Item Type Name | scope |
| Item Weight | 2 Ounces |
| Manufacturer | Holosun |
| Material Type | Aluminum |
| Model Name | HE509-RD-R |
| Mounting Type | Holosun 509 ACSS Mounting Plate |
| Night vision | No |
| Product Style | Pistol Sight |
| Reticle Type | ACSS Vulcan |
| Sport Type | Hunting |
| UPC | 810047071617 |
| Warranty Description | Limited Lifetime |

## Product Details

- **Brand:** Primary Arms
- **Color:** Red
- **Compatible Devices:** Handgun
- **Item Weight:** 2 Ounces
- **Material:** Aluminum
- **Mounting Type:** Holosun 509 ACSS Mounting Plate
- **Night vision:** No
- **Product Dimensions:** 1.78"L x 1.22"W x 1.14"H
- **Sport:** Hunting
- **Style:** Pistol Sight

## Images

![Holosun HE509-RD Enclosed Solar Red Dot Sight w/507C Mounting Plate-ACSS Vulcan - Image 1](https://m.media-amazon.com/images/I/71gtZrE0wTL.jpg)

## Questions & Answers

**Q: whats the adapter plate of this rmr or mos?**
A: Thank you for your question. This red dot will come with the RMR/507C plate.

**Q: is this rmr footprint?**
A: Thank you for the question. The 509ACSS has a proprietary footprint but comes in two offerings from the factory. One has a Glock MOS adapter plate and the other has a 507C/RMR adapter plate included.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The one optic to rule them all.
*by M***G on March 23, 2026*

Fantastic optic! No other optic comes close to it's ease of aiming in canted or angled offset aiming because of the 250 MOA ring with a chevron. Glass is so crisp that it helps with my Astigmatism. Using various Glock types, I've ran through thousands of 9mm .40 & 10mm rounds with zero optic issues. Holosun (maker of the optic) & Primary Arms (inventor of the large ring reticle) knocked it out the ball park with this one.

### ⭐⭐⭐⭐⭐ No other red dots compare
*by K***T on March 21, 2024*

So I was vastly skeptical about trying this HoloSun 509 ACSS red Vulcan reticle compared to my other reflex red dots because I wasnt sure how it would function on my P320 XCompact but also because I didn't want a gawkingly huge optic on my concealed carry. This thing never let me down at the range or in the field and looks absolutely amazing. The reticle doesn't get washed out in bright light because it utilizes the solar panels with the battery to automatically brighten the reticle or dim it when needed. You can brighten it dim it manually as well if you'd like. The reticle shuts off after 10mins of non-use and incporates shake-awake technology so it comes on when you pull it up and out of your holster. The chevron can be used to gauge your distance without guessing while aiming high for longer distances. It comes sighted in from the manufacturer and I tested that out with my bore sighter and again at the range. At 25yrds I hit 40/50 shots in my small orange/black target with slow firing. At faster pace firing at the same range I still hit between the 10-8 on the green B27 target. Then repeated the same fire rate on a single white sheet of paper. The optic is deadly and very fast to acquire target. Much faster than align rear and front iron sights, which I've done for over 30yrs. At the very tip of the chevron it's zeroed at 7 and 25yrds. At the inside bottom of the tip it hits 50yrds and between the two arms of the chevron at the bottom is 100yrds, beyond that it's a guess but with a pistol you'll never shoot that far. I love that the emitter is enclosed so it can't be obstructed by anything like snow, rain, dirt, etc. You can rack your gun using the optic off anything, even hard surfaces and really smack this thing around, drop it, bang it around and it still holds zero and works flawlessly. It's the perfect size for pistols and doesnt look big on the gun! It makes anyone's pistol more deadly and made my pistol look menacing! I love this thing! It comes with adjustment tools for the reticle, adapter plate and mounting tools. I had C&H precision send me a filler plate in place of the adapter plate to fill any tiny gaps between my slide and the optic. Phenomenal optic! I'll be getting one for each of my pistols and maybe even my shotgun. See the pictures for more details.

### ⭐⭐⭐⭐⭐ Excellent quality
*by R***F on November 25, 2025*

I concealed carry, & do a lot of range training so an enclosed emitter like this one fit the bill perfectly. It's easy to keep free from lint & dust & the titanium housing is super durable. I over torqued my first one & sheared the screws but holosun sent me out a replacement set right away. Great customer service. Purchased a second one so my carry gun can match my training gun. Great optic for the money.

## Frequently Bought Together

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-14*