The Holosun HS507K X2 ACSS Red Dot Sight is a Holosun pistol dot sight with 0.58" x 0.77" window.
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.
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.
Ideal For
- Both-eyes-open shooting, where irons slow you down
- Leaving the optic switched on — Holosun rate the battery at 40,000 hours on medium settings
- Finding the dot fast — a 0.58" x 0.77" window
Key Features
- Brightness Settings: 12 total - 10 daylight + 2 NV
- Window Size: 0.58" x 0.77"
- Adjustment Per Click: 1 MOA
- Battery Type: CR1632
- Battery Life: 40,000 hours on medium settings
- Shake Awake: Yes (plus Lock Mode)
- Solar Failsafe: Not present
- Waterproof Rating: IP67
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 aluminum |
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 D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
Is the reticle illuminated?
12 total - 10 daylight + 2 NV.
What are the turret adjustments?
1 MOA.
What battery does it take?
CR1632.
Is it waterproof?
IP67.
Is this a genuine Holosun product?
Yes — factory-new Holosun, supplied through US distribution. The part number is HS507K-X2-ACSS and the barcode is 810047072393.
What warranty does it carry?
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.
