HOLOSUN 509T-X2 Series Reflex Sight -Shake-Awake Parallax-Free Enclosed LED Sight with…
- Handgun Scope
- 1x
- 1x
- Titanium
- Better rated than 90%
- More reviewed than 57%
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How it ranks among the 24 handgun scopes we track
4.8★ across 304 Amazon ratings, Bayesian-smoothed toward the category average.
304 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
509+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 24 handgun scopes we track - how the scorecard works · full handgun scopes data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 22, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
An enclosed reflex red dot sight for handguns with a titanium housing, RMR-footprint adapter plate included, and a multi-reticle system offering a 2 MOA dot alone or paired with a 32 MOA circle.
The enclosed design and titanium housing are meant to keep the emitter protected on a carry or duty pistol, and Shake Awake plus solar failsafe are aimed at keeping the dot ready without constant battery swaps. Buyers mounted it across a range of pistols, including Glocks and an FN 545, suggesting broad compatibility through the included RMR adapter.
- Grade 5 titanium, nitrogen-purged enclosed housing
- 2 MOA dot with switchable 32 MOA circle reticle
- Shake Awake activation plus solar failsafe backup
- RMR footprint adapter plate included
Who it's for
Suits handgun shooters who want an enclosed-emitter red dot for daily carry, duty use or range training, and who value a backup illumination source over battery alone. Not the pick for someone wanting an open-emitter sight or optics built for a rifle.
What buyers say
From Amazon customer reviews.
Owners mounted this on a range of pistols, from Glocks to an FN 545 carry gun, and consistently report it holding zero through repeated shooting. Several mention a short learning curve switching from fixed sights, and multiple reviewers say it replaced a pricier red dot without giving anything up.
Strengths and trade-offs
Drawn from this product's published specifications.
- Enclosed emitter and titanium housing withstand slide-mounted recoil
- Solar failsafe backs up battery power
- Dual reticle option speeds close targets, keeps precision at distance
Specifications
| Brand | Brand |
|---|---|
| Model | HE509T-RDX2 |
| Dimensions & fit | |
| Item Weight | 1.8 ounces |
| Item Dimensions L x W x H | 1.6 × 1.2 × 1.1 inches |
| Construction & materials | |
| Material Type | Titanium |
| Color | Red 2 MOA Dot & 32 MOA Circle (HE509T-RD X2) |
| Lens Color | Red |
| Compatibility & installation | |
| Mounting Type | Weaver Mount |
| Compatible Devices | Handgun |
| Included components | |
| Unit Count | 1 |
| Included Components | Holosun HE509T-RDX2: Red Multi-Reticle, Titanium, |
| Warranty & support | |
| Warranty Description | Lifetime |
| Other details | |
| Magnification Minimum | 1x |
| Magnification Maximum | 1x |
| Reticle Type | Circle-Dot |
| Sport Type | Hunting, recreational shooting, target shooting, competitive shooting |
| Thread Type | Weaver #322-2048 |
| Night vision | No |
| Item Type Name | Shooting sight |
| Product Style | Red Reticle |
Other Brand handgun scopes
How it compares
This product against the closest alternatives we track in handgun scopes.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| HOLOSUN 509T-X2 Series Reflex Sight -Shake-Awake Parallax-Free Enclosed LED Sight with…This product | 4.8 / 5 | 304 | 4.2 / 5 |
| Trijicon RMR Type 2 6.5 MOA Adjustable LED Red Dot SightTrijicon | 4.4 / 5 | 458 | 4.2 / 5 |
| NcStar 2.5X30 Pistol Scope/Blue Lens/RingNcSTAR | 4.4 / 5 | 397 | 4.2 / 5 |
| UTG 2-7X32 1" Handgun ScopeUTG | 4.3 / 5 | 322 | 4.1 / 5 |
| MECANIK Canik M03 1x29mm Competition Reflex Red Dot SightMecanik | 4.4 / 5 | 227 | 4.1 / 5 |
Similar handgun scopes from other brands
Questions about the Brand HE509T-RDX2
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the Holosun HE509T-X2 fit standard handgun mounting cuts?
It ships with an RMR-footprint adapter plate, and reviewers report mounting it on Glocks and other RMR-cut pistols.
What happens if the battery dies?
The solar failsafe powers the reticle from ambient light when the CR1632 battery runs out, per the listed specs.
Can the reticle circle be turned off?
Yes, the multi-reticle system lets you disable the 32 MOA circle and use just the 2 MOA dot.