Holosun HS507C-X2 Pistol Red Dot Sight
- Magnification Minimum: 1x
- Mounting Type: Picatinny Mount
- Reticle Type: Dot
- Material Type: Aluminum
Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A direct RMR-footprint dot with a fast-acquisition chevron reticle and long battery runtime, worth considering if you're already set up for that mounting pattern.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B09DSVYCRHModel: HS507C-X2-ACSSCategory: Handgun Scopes
Overview
An open-emitter red dot built on the Holosun 507C/Trijicon RMR footprint, so it mounts directly to RMR-pattern pistols, rifles, PCCs, and shotguns without an adapter. It runs the ACSS Vulcan reticle, a 10 MOA chevron with a deactivatable outer ring for faster target acquisition.
Shake Awake activates the sight on motion and shuts it down when still, which the listing rates at up to 20,000 hours on a medium brightness setting; a solar panel supplements that further in bright light. Machined from 7075-T6 aluminum, the open emitter housing weighs 1.5 oz, and Holosun backs it with a limited lifetime warranty.
- RMR and 407C/507C footprint compatible
- ACSS Vulcan chevron-and-circle reticle
- Shake Awake motion activation
- Solar failsafe backup power
Who it's for
Fits pistol, PCC, or shotgun owners already on the RMR footprint who want to add a chevron-style reticle without swapping mounting plates. Less relevant if you specifically want an enclosed-emitter sight rather than an open one.
Pros and cons
- Direct RMR/507C footprint, no adapter needed
- Chevron reticle can drop the outer circle
- Shake Awake plus solar extend battery life
- Lightweight 1.5 oz aluminum housing
- Open emitter design rather than enclosed
- Only one reticle pattern offered
Performance notes
The ACSS Vulcan reticle pairs a 10 MOA chevron with an outer reference circle that can be turned off for a chevron-only view, and multicoated lenses across 12 brightness settings aim to keep the sight picture clear in varied light. Shake Awake and the integrated solar panel work together to extend runtime without manual power cycling.
Specifications
| Brand | HOLOSUN |
|---|---|
| Model | HS507C-X2-ACSS |
| Dimensions & fit | |
| Item Weight | 0.51 pounds |
| Construction & materials | |
| Material Type | Aluminum |
| Color | Red Vulcan |
| Lens Color | Red |
| Compatibility & installation | |
| Mounting Type | Picatinny Mount |
| Compatible Devices | Handgun, Rifle, Shotgun |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | Limited lifetime |
| Other details | |
| Magnification Minimum | 1x |
| Reticle Type | Dot |
| Sport Type | Hunting |
| Number Of Items | 1 |
| Product Style | HS507C-X2-ACSS |
| Item Type Name | Scope |
Closest rivals on specs
TRIJICON RMR Type 2 Adjustable Red Dot 1 MOA- Item Weight 0.51 vs 0.58 pounds (-12%)
Burris 2-7x32 Handgun Scope Ballistic Plex- Item Weight 0.51 vs 0.81 pounds (-37%)
C+H Duty XL Enclosed Pistol Red Dot Sight- Item Weight 0.51 vs 0.16 pounds (+219%)
Frequently asked questions
Does the Holosun HS507C-X2 need an adapter plate for RMR pistols?
No, it mounts directly on the Holosun 407C/507C and Trijicon RMR footprint without an adapter.
How long does the battery last?
The listing rates it at up to 20,000 hours on a medium brightness setting, extended further by Shake Awake motion activation and the built-in solar panel.
Can I turn off the outer circle in the ACSS Vulcan reticle?
Yes, the outer reference circle can be deactivated to leave a chevron-only sight picture.