OpticsPlanetAvailability variesChecked Invalid Date
Check OpticsPlanet pricePaid link
509T X2
The Holosun HE509T-X2 is a 1× enclosed-emitter pistol optic with a selectable 2 MOA dot, 32 MOA circle, or combined circle-dot reticle. Holosun documents a titanium housing, Solar Failsafe, Shake Awake, a side-loading CR1632 battery rated up to 50,000 hours at setting 6, twelve brightness settings, 1 MOA adjustments, a 1.27 oz weight, and IP67 water resistance. This is a manufacturer-sourced research record; Known Ground has not marked it as personally tested.
Source-backed record
Research record; not firsthand tested.
14 documented specifications, source references, and verification dates are present. Mounting paths are reviewed separately.
optic
Weight: 1.27 oz
Dimensions: 1.60 × 1.16 × 1.13 in
Compatibility: Holosun 509T footprint
Not listed
Prices may change.
Where to buy
Check prices for 509T X2
We may earn a commission from purchases made through paid links. It never changes our conclusions.
Description
The Holosun HE509T-X2 is a 1× enclosed-emitter pistol optic with a selectable 2 MOA dot, 32 MOA circle, or combined circle-dot reticle. Holosun documents a titanium housing, Solar Failsafe, Shake Awake, a side-loading CR1632 battery rated up to 50,000 hours at setting 6, twelve brightness settings, 1 MOA adjustments, a 1.27 oz weight, and IP67 water resistance. This is a manufacturer-sourced research record; Known Ground has not marked it as personally tested.
Specifications
| Solar | Yes |
|---|---|
| Design | Enclosed emitter |
| Window | 0.66 × 0.90 in |
| Battery | Side-loading CR1632 |
| Housing | Titanium |
| Reticle | 2 MOA dot and 32 MOA circle |
| Adjustment | 1 MOA per click |
| Brightness | 8 daylight and 4 night-vision settings |
| Battery life | 50,000 hours at setting 6 |
| Magnification | 1× |
| Adjustment range | ±30 MOA |
| Water resistance | IP67 |
| Motion activation | Shake Awake |
| Automatic brightness | Yes |
Sources and verification
- Manufacturer product page
- Specification source — checked August 5, 2026
- Mounting-footprint source — checked August 5, 2026
Reviewed pistol mounting paths
| Pistol configuration | Result | Mounting details | Verified |
|---|---|---|---|
| Staccato Staccato C2 Optic Ready Staccato C2 Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO 509T Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato C Optic Ready Staccato C Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO 509T Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Walther PDP Full Size — 2.0 Cut PDP Full Size — 2.0 Cut · Walther PDP 2.0 Optic Cut | plate required | Walther Walther PDP 2.0 509T Plate (oem) — Use screws specified for the exact optic. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato XL Optic Ready Staccato XL Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO 509T Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Walther PDP Compact — 2.0 Cut PDP Compact — 2.0 Cut · Walther PDP 2.0 Optic Cut | plate required | Walther Walther PDP 2.0 509T Plate (oem) — Use screws specified for the exact optic. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato XC Optic Ready Staccato XC Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO 509T Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato P DPO Staccato P DPO · Staccato DPO | plate required | Staccato Staccato DPO 509T Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato CS Optic Ready Staccato CS Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO 509T Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |