--- product_id: 549614448 title: "Holosun HE509-RD Enclosed Solar Powered Red Dot Sight | 507C Mounting Plate - ACSS Vulcan Reticle" brand: "primary arms" price: "$1523.61" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.ec/products/549614448-holosun-he509-rd-enclosed-solar-powered-red-dot-sight-507c store_origin: EC region: Ecuador --- # 20,000 hrs battery life Solar Failsafe power boost Waterproof & shockproof aluminum Holosun HE509-RD Enclosed Solar Powered Red Dot Sight | 507C Mounting Plate - ACSS Vulcan Reticle **Brand:** primary arms **Price:** $1523.61 **Availability:** ✅ In Stock ## Summary > 🎯 Lock, Load, and Lead with Laser Precision ## Quick Answers - **What is this?** Holosun HE509-RD Enclosed Solar Powered Red Dot Sight | 507C Mounting Plate - ACSS Vulcan Reticle by primary arms - **How much does it cost?** $1523.61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/549614448-holosun-he509-rd-enclosed-solar-powered-red-dot-sight-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 - • **All-Weather Durability:** Fully enclosed emitter and hardcoat anodized aluminum body keep your sight crystal-clear and operational in dust, rain, or shock. - • **Smart Power Management:** Shake Awake tech powers on with motion and conserves battery during downtime—never miss a shot. - • **Solar-Enhanced Runtime:** Integrated solar panel supplements battery life, ensuring your reticle stays bright in any lighting condition. - • **Seamless 507C Compatibility:** Fits top-tier handguns with included adapter plate for instant upgrade. - • **ACSS Vulcan Reticle Precision:** Dynamic circle guides your eye to a razor-sharp 10 MOA chevron for lightning-fast target acquisition. ## Overview The Holosun HE509-RD is a lightweight, enclosed red dot sight designed for optics-ready handguns, featuring a patented ACSS Vulcan reticle for rapid target acquisition. Built with a rugged anodized aluminum body, it offers waterproof and shockproof durability. Its innovative Shake Awake technology and Solar Failsafe panel maximize battery life up to 20,000 hours, making it a reliable companion for professionals demanding precision and resilience in any environment. ## 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. ## Features - Holosun 507C footprint with included adapter plate: Ships with a 507C adapter plate compatible with a wide range of optics-ready handguns; measures 1.78 inches in length, 1.22 inches wide, and weighs just 2 oz for a low-profile enclosed emitter setup - ACSS Vulcan reticle: Features a large outer circle that guides the eye to a precise 10 MOA center chevron for fast target acquisition. The outer circle phases completely out of the window once properly centered; deactivate the circle for a clean chevron-only view; 1 MOA click adjustments - Fully enclosed emitter design: Sealed housing protects the emitter from water, dust, and debris that can disrupt open-emitter sights. Fully multi-coated lens delivers a clear, bright sight window across all 12 brightness settings - Hardcoat anodized aluminum construction: Lightweight 2 oz body is waterproof and shockproof. Fully enclosed design prevents lens fogging and keeps the emitter operational in wet or dusty conditions - Shake Awake technology: Automatically powers the reticle on at the slightest movement and off during extended periods of stillness to maximize total runtime - Solar Failsafe panel: Integrated solar panel supplements the primary power source to keep the reticle illuminated across a wide range of lighting conditions - Lifetime Warranty: Backed by Primary Arms' Limited Lifetime Warranty against manufacturer defects, materials, and workmanship; transferable to any owner without proof of purchase ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09YFMSFDK | | Best Sellers Rank | #439,185 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #1,024 in Gun Sights | | Brand Name | Primary Arms | | Color | Red | | Compatible Devices | Handgun | | Customer Reviews | 4.9 4.9 out of 5 stars (17) 4.9 out of 5 stars | | Item Dimensions L X W X H | 1.78"L x 1.22"W x 1.14"H | | Item Display Weight | 2 ounces | | Item Type Name | scope | | Item Weight | 2 ounces | | Lens Color | Red | | Manufacturer | Holosun | | Material Type | Aluminum | | Model Name | HE509-RD-ACSS-R | | Model Number | HE509-RD-ACSS-R | | Mounting Type | Holosun 509 ACSS Mounting Plate | | Number Of Items | 1 | | Product Style | Pistol Sight | | Reticle Type | ACSS Vulcan | | Sport Type | Hunting | | Unit Count | 1 Count | | 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 Powered Red Dot Sight | 507C Mounting Plate - ACSS Vulcan Reticle - Image 1](https://m.media-amazon.com/images/I/71gtZrE0wTL.jpg) ![Holosun HE509-RD Enclosed Solar Powered Red Dot Sight | 507C Mounting Plate - ACSS Vulcan Reticle - Image 2](https://m.media-amazon.com/images/I/61AL9xhwnSL.jpg) ![Holosun HE509-RD Enclosed Solar Powered Red Dot Sight | 507C Mounting Plate - ACSS Vulcan Reticle - Image 3](https://m.media-amazon.com/images/I/51WOf+syrLL.jpg) ![Holosun HE509-RD Enclosed Solar Powered Red Dot Sight | 507C Mounting Plate - ACSS Vulcan Reticle - Image 4](https://m.media-amazon.com/images/I/51PnbCsOAbL.jpg) ![Holosun HE509-RD Enclosed Solar Powered Red Dot Sight | 507C Mounting Plate - ACSS Vulcan Reticle - Image 5](https://m.media-amazon.com/images/I/71-Y--YjAgL.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 ### ⭐⭐⭐⭐⭐ No other red dots compare *by on Reviewed in the United States 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. ### ⭐⭐⭐⭐⭐ The one optic to rule them all. *by on Reviewed in the United States 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. ### ⭐⭐⭐⭐⭐ Excellent quality *by on Reviewed in the United States 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 - Holosun HE509-RD Enclosed Solar Powered Red Dot Sight w/ 507C Mounting Plate - ACSS Vulcan Reticle - Streamlight 69260 TLR-1 HL 1000-Lumen Rail Mounted Strobing Tactical Weapon Light with Rail Locating Keys and Lithium Batteries, Black - DPP Titanium Mount/Adapter Plate Compatible with Glock 17 19 MOS Holosun 509T --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ec/products/549614448-holosun-he509-rd-enclosed-solar-powered-red-dot-sight-507c](https://www.desertcart.ec/products/549614448-holosun-he509-rd-enclosed-solar-powered-red-dot-sight-507c) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-08-15*