The Holosun HE507COMP in green, part number HE507COMP-GR, is a 1x open-emitter competition pistol sight on the Trijicon RMR footprint, with a 1.1 x 0.87 in window and the Competition Reticle System.
Size the reticle to the stage rather than the other way round: a 2 MOA green dot for a tight standard, or an 8, 20 or 32 MOA circle when the targets are close and the transitions matter more than the group.
The window is the biggest part of the argument — at 1.1 x 0.87 in it takes up very little of your view of the target, so the dot arrives in the glass instead of you searching the glass for the dot. The housing is 7075-T6 aluminium with a hard anodised black finish, rated IP67 and tested to 5000G, measuring 1.8 x 1.3 x 1.3 in and weighing 1.7 oz.
A 540nm green LED tends to hold up against bright outdoor backgrounds, which is why green is a common choice for daylight competition. Adjustment is 1 MOA per click with 30 MOA each way, there are 8 daylight brightness settings and 4 night-vision levels, and Lock Mode stops a knock changing them mid-stage. The CR1632 lives in a side tray rated to 50,000 hours at setting 6, so cells change without unmounting. Note it has no solar panel: this model runs on the battery alone.
Why shooters choose the HE507COMP Green
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Reticle — Competition Reticle System — 2 MOA green dot with 8, 20 and 32 MOA circles
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Window — 1.1 x 0.87 in, sized for fast draws and target transitions
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Footprint — Trijicon RMR, for RMR-cut slides and RMR-pattern plates
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Brightness — 8 daylight and 4 night-vision settings, with Lock Mode and Shake Awake
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Power — side-loading CR1632 rated to 50,000 hours at setting 6, no solar panel on this model
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Build — 7075-T6 aluminium, hard anodised, IP67 and 5000G rated, 1.7 oz
What the HE507COMP Green fits
It goes on any slide cut for the Trijicon RMR, and on optics-ready pistols supplied with an RMR-pattern adapter plate — including RMR-pattern mounts on pistol-calibre carbines. In the same family, the HE507C X2 is the standard-window green sight with Solar Failsafe and the HE507 ProMax is the larger-window model. Browse all RMR footprint red dot sights.
Specifications
| Magnification |
1x (non-magnified), parallax-free |
| Reticle |
2 MOA dot with 8 / 20 / 32 MOA circles, green 540nm |
| Emitter |
Open |
| Window |
1.1 x 0.87 in |
| Brightness |
8 daylight / 4 night-vision settings |
| Adjustment |
1 MOA per click, ±30 MOA |
| Battery |
CR1632 side-loading tray, up to 50,000 hours at setting 6 |
| Power Management |
Shake Awake and Lock Mode; no solar panel |
| Footprint |
Trijicon RMR |
| Housing |
7075-T6 aluminium, hard anodised, IP67, 5000G |
| Dimensions |
1.8 x 1.3 x 1.3 in |
| Weight |
1.7 oz |
| MPN |
HE507COMP-GR |
A competition window and four reticle sizes, in the colour most shooters pick up quickest in daylight. Order the HE507COMP Green today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Green Dot Sights, HE507C X2 Green or browse all Holosun.
