Holosun HS507K X2 ACSS Red Dot Sight – HS507K-X2-ACSS
$349.99
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Holosun
Holosun HS507K X2 ACSS Red Dot Sight – HS507K-X2-ACSS
$349.99
HS507K-X2-ACSS
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Questions about fit or compatibility?Our product support team can help before you order.Contact us
Shipping Information
Orders ship within the United States only and are typically processed in 1–2 business days. Delivery estimates and any free-shipping offers are shown at checkout. We do not ship internationally. Read our full Shipping Policy.
Returns
Unused items in their original packaging may be returned within 30 days of delivery. Optics that have been mounted or used may be inspected. Email support@dnrsports.com to start a return. Read our full Return & Refund Policy.
Warranty Information
Products are covered by their manufacturer's warranty; coverage and length vary by brand. We'll help you start a claim if needed — email support@dnrsports.com. Read our Warranty page.
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Product Overview
Overview
The Holosun HS507K X2 ACSS Red Dot Sight is an open-emitter red dot sight with a red reticle. Dot size is 3 MOA dot. ACSS Vulcan Dot — a 3 MOA dot inside a 230 MOA ring. This is not the chevron reticle used on the 507C.
Fitment
This uses the Holosun K footprint (a modified RMSc pattern) footprint. Holosun list it as fitting: Slides cut for the Holosun K footprint. Primary Arms states it mounts to RMSc-pattern slides WITHOUT recoil lugs; a lugged RMSc slide such as the Glock 43X MOS needs an adapter. K-footprint and plain RMSc are NOT the same thing.. Check your slide cut before ordering — footprints that look similar are not always interchangeable.
How It Compares
Also consider Holosun HS507K X2 Red Dot Sight, Holosun 510C+HM3X Red Dot Sight, Holosun HS407C X2 Red Dot Sight. Browse all Holosun.
Parallax
Holosun list parallax as none for this sight. In practice a reflex sight still shows a small point-of-aim shift off-axis at close range.
Technical Specifications
| Reticle Name | ACSS Vulcan Dot |
| Reticle Geometry | 3 MOA dot + 230 MOA segmented outer circle; selectable dot+circle or dot-only. No chevron |
| Solar Failsafe | Not present |
| Shake Awake | Yes (plus Lock Mode) |
| Battery Type | CR1632 |
| Battery Life | 40,000 hours on medium settings |
| Brightness Settings | 12 total - 10 daylight + 2 NV |
| Window Size | 0.58" x 0.77" |
| Weight | 1.0 oz |
| Dimensions | 1.6" x 0.98" x 0.95" |
| Adjustment Per Click | 1 MOA |
| Waterproof Rating | IP67 |
| Housing Material | CNC-milled 7075 aluminium |
| SKU / MPN / UPC | HS507K-X2-ACSS / HS507K-X2-ACSS / 810047072393 |
Warranty
Holosun's Limited Lifetime Warranty is split by component: the housing and glass are covered for the life of the product, while the LED illumination system is covered for 10 years from the date of manufacture rather than the date you buy it. Batteries are not covered, and Holosun require you to register the product for the warranty to be valid.
US Shipping & Support
Shipped from the USA by D&R Sports Center. If you are unsure which optic fits your slide or rail, ask us before you order — we would rather get it right first time.
Frequently Asked Questions
What size is the dot?
3 MOA dot.
What does it mount to?
It uses the Holosun K footprint (a modified RMSc pattern) footprint.
Is it an open or enclosed emitter?
Open emitter.
Does it have Solar Failsafe?
No. This model runs on the battery alone.
Does it have Shake Awake?
Yes — it sleeps to save the battery and wakes on movement.
What battery does it take?
CR1632, rated at 40,000 hours on medium settings.
By the Numbers
Technical Specifications
- SKU
- HS507K-X2-ACSS
- UPC
- 810047072393
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