Duty Arms IndexDuty Arms Index
Pistol optic evaluation memo: Holosun 509T vs Aimpoint ACRO P-2
| Version compared | Holosun 509THolosun HE509T-RD X2 | Aimpoint ACRO P-2Aimpoint ACRO P-2 3.5 MOA |
|---|---|---|
| Mounting footprint | 509T Footprint [1] | Acro Interface [2] |
| Emitter | Fully enclosed emitter [1] | enclosed red dot sight [2] |
| Mounting notes (maker's) | RMR to 509T Adapter Plate [1] | Integrated Acro™ Interface [2] |
| Reticle / dot size | 2 MOA Dot & 32 MOA Circle [1] | 3.5 MOA [2] |
| Reticle colour | Not published | Red [2] |
| Window size | 0.66" x 0.9" [1] | 15 × 15 mm [2] |
| Brightness settings | 8 Daylight & 4 [1] | 4 night vision compatible settings and 6 daylight settings [2] |
| Night-vision settings | Not published | Not published |
| Battery | CR1632 [1] | CR2032, 3V, Lithium [2] |
| Battery life (maker's stated) | 50,000 Hours [1] | 50,000 h at daylight setting 6 (15,000 Lux, room temperature) [2] |
| Battery access | Not published | Not published |
| Auto-on / auto-brightness | Shake Awake Technology [1] | Not published |
| Dimensions | 1.6" x 1.16" x 1.13" [1] | 47 x 33 x 31 mm / 1.9 x 1.3 x 1.2 in [2] |
| Weight | 1.27 oz [1] | 61 g / 2.2 oz [2] |
| Housing material | 7075 T6 Titanium [1] | High strength aluminum [2] |
| Water rating (maker's stated) | IP67 [1] | 35 m / 115 ft [2] |
| Maker list price | Not published | Not published |
| Agencies issuing (current entry) | 17 of 105 agencies with a sourced pistol optic | 13 of 105 agencies with a sourced pistol optic |
| Most common host pistol | Glock G45 Gen5 MOS (5) | Glock G17 Gen5 MOS (3) |
Notices
No recalls, safety statements or agency actions on file for either model.
Sources
- [1] Holosun HE509T-RD X2. Holosun. Accessed Oct 11, 2026. https://www.holosun.com/products/he509t-x2-rd (archive: https://web.archive.org/web/2026/https://www.holosun.com/products/he509t-x2-rd)
- [2] Acro P-2 3.5 MOA - Red dot reflex sight with integrated Acro interface. Aimpoint. Accessed Oct 11, 2026. https://www.aimpoint.com/products/acro-p-2-35-moa-red-dot-reflex-sight-with-integrated-acro-interface (archive: https://web.archive.org/web/2026/https://www.aimpoint.com/products/acro-p-2-35-moa-red-dot-reflex-sight-with-integrated-acro-interface)