Red dot sights
Holosun HS507C-X2: Full Specifications
Quick answer
The Holosun HS507C-X2 Red 2 MOA Dot and 32 MOA Circle Open Reflex Sight lists at $232.99. Published figures: magnification 1x, dot size 2 MOA, optic footprint 507C. It suits a compact optic on a widely supported footprint.
A compact open reflex on the common 507C footprint, which is the pattern most modern mounting plates are cut for and therefore the easiest to find a mount for.
Every figure below is the manufacturer's own published specification, taken from the product listing and the data sheet. Where a figure is not published it is left out rather than estimated, which is why some sheets are shorter than others. Price is the listed price when this page was last compiled and it changes often.
On this page
Holosun HS507C-X2 specifications
The Holosun HS507C-X2 publishes magnification 1x, dot size 2 MOA, optic footprint 507C, at a listed price of $232.99.
Sourced figure
| Specification | Published figure |
|---|---|
| Magnification | 1x |
| Dot size | 2 MOA |
| Optic footprint | 507C |
| Motion activation | Yes |
Specifications above are the manufacturer published figures, taken from the product listing. Figures the maker does not publish, such as total elevation travel or exact eye relief, are omitted here rather than estimated.
What the manufacturer says about it
The manufacturer own listing bullets, quoted rather than paraphrased so you can judge the claims yourself. These are marketing copy, not independent measurement.
Holosun lists 5 headline points for the HS507C-X2, quoted here verbatim.
| Manufacturer listing point |
|---|
| HOLOSUN RED DOT SIGHT - The HS507C X2 is an open reflex sight designed for full-sized pistol applications; This handgun sight features Lock Mode that locks the buttons preventing inadvertent setting changes; T10 L Key, CR1632 Battery, Lens Cloth, and User Manual are included |
| HIGH PERFORMANCE - The HS507C X2 pistol sight features Holosun's Red Super LED with up to 50k hour battery life, Solar Failsafe, Multi-Reticle System, and Shake Awake; The durable housing is made from 7075 Aluminum, uses an industry standard footprint, and houses the 1632 battery in a side-mounted tray for easy replacement when needed |
| SHAKE AWAKE TECHNOLOGY - Extends battery life by deactivating the optic's LED while not in use; Shake Awake offers settings from 10 minutes to 12 hours depending on the model and can be deactivated altogether if preferred; The slightest touch of the optic instantly reactivates the LED so your Holosun reflex sight for pistol is ready when needed |
| SOLAR FAILSAFE - If your battery fails, this red dot sight for pistol has a backup power source when natural or artificial light is available; Solar Failsafe is activated while in Auto Mode where reticle intensity is automatically adjusted: in brighter conditions, you have a brighter reticle and in lower-light conditions, the reticle will step down in intensity to match any lighting conditions |
| SPECIFICATION - Reticle: Red 2 MOA Dot & 32 MOA Circle; Light Wavelength: 650nm; Magnification: 1x; Parallax Free & Unlimited Eye Relief; Power Source: Solar & Battery; Battery Type: CR1632; Battery Life (Hours): 50000; Brightness Setting: 10 DL & 2 NV Compatible; Window Size: 0.63x0.91; Housing Material: 7075 T6 Aluminum; Surface Finish: Anodize; Adjustment per Click: 1 MOA; W&E Travel Range: ±50 MOA |
What this optic suits
Best for: a compact optic on a widely supported footprint.
Category: red dot sights. The honest test for any optic is whether its numbers match your rifle and the distances you actually shoot rather than whether it is a good product in the abstract. Work out what ring height you need, what exit pupil the magnification gives you and how much elevation the distance demands, using the calculators on this site, then check this model against those answers.
The closest alternatives at a similar price
Same category, nearest price. An alternative with no stated reason is filler, so each of these is here because it trades something specific against the model above.
Vortex Strikefire II Red Dot Sight, 4 MOA Red or Green Dot
$179.99A 4 MOA dot and a green option. The larger dot is faster to pick up and covers four inches at a hundred yards, which is the trade you are making.
Best for: speed up close where a fine dot is slower to find
Check price on Amazon
Holosun 510C Multi-Reticle 2 MOA Dot and 65 MOA Circle Open Reflex Sight
$295.84The 65 MOA circle finds your eye far faster than a bare dot, and the 2 MOA dot inside it is precise enough for a deliberate shot. A solar cell backs up the battery.
Best for: a sight used both fast up close and deliberately at distance
Check price on Amazon
SIG SAUER ROMEO5 GEN II 1x20 Red Dot Sight
$128.98 Full specificationsMotion activation is the feature that matters: the sight switches itself off when the rifle sits still and wakes instantly when it moves, so the battery lasts years left on.
Best for: a rifle that is stored ready and grabbed without warning
Check price on Amazon
Vortex Crossfire Red Dot Sight Gen II, 2 MOA Red Dot
$119.99A tube style sight rather than an open reflex, which keeps rain and snow off the emitter. That is a real advantage in weather and a real disadvantage in weight.
Best for: a red dot used in genuinely bad weather
Check price on AmazonSide by side
| Model | Price | Magnification | Dot size | Motion activation |
|---|---|---|---|---|
 Holosun HS507C-X2 Red 2 MOA Dot and 32 MOA Circle Open Reflex Sight | $232.99 | 1x | 2 MOA | Yes |
| Vortex Strikefire II Red Dot Sight, 4 MOA Red or Green Dot | $179.99 | 1x | 4 MOA | - |
| Holosun 510C Multi-Reticle 2 MOA Dot and 65 MOA Circle Open Reflex Sight | $295.84 | 1x | 2 MOA | Yes |
| SIG SAUER ROMEO5 GEN II 1x20 Red Dot Sight | $128.98 | 1x | 2 MOA | Yes |
A dash means the manufacturer does not publish that figure. We leave it blank rather than estimating it.
How we chose
We did not test these optics in person and we never claim to. Picks are researched from manufacturer specification sheets, published optical and ballistic formulas, and the recurring themes in verified owner reviews. Every pick is matched to a real objective diameter, a real tube size, a real ring height or a real exit pupil rather than to a price bracket, and it is placed in the tier where its capability actually belongs. Where a figure is shooter convention rather than a sourced number we label it, and where a manufacturer does not publish a figure we leave it out instead of estimating it.
Sources
- Holosun published specifications for the HS507C-X2
- Amazon product listing features and current pricing
Frequently asked questions
How much does the Holosun HS507C-X2 cost?
It was listed at $232.99 when this page was last compiled. Optics pricing moves frequently and promotional pricing is common, so treat that as a planning figure and confirm the current price before committing to a purchase or budgeting a whole setup around it.
Is the Holosun HS507C-X2 right for my rifle?
A compact optic on a widely supported footprint. Beyond that, the honest test is whether it physically fits and whether its numbers match the distances you shoot. Check the ring height its objective needs and the exit pupil its magnification gives before deciding.
Where do these specifications come from?
The manufacturer published figures, taken from the product listing and data sheet. We do not test products in person and we never claim to, so nothing here is a measured result. Where a specification is not published by the manufacturer it is omitted rather than estimated, which is why some sheets are shorter than others.
Will this fit my rifle and my rings?
Check three things in this order. The tube diameter has to match the rings exactly, because a 30 mm ring will not hold a 34 mm tube. The objective bell has to clear the barrel at the ring height you own. And the rail or base pattern on the receiver has to match the mount. Those three account for most returns in this category.
Is it worth buying this rather than the cheaper alternative?
Only if the thing it does better is something you actually need. The alternatives listed above each trade something specific, and on a first setup the money almost always does more good spent on a solid mount, a torque driver and a level than on upgrading the glass by one model.
Researched, not professional advice. This page is compiled from published manufacturer specifications, published optical and ballistic formulas, and owner-review consensus, not hands-on testing. Figures described as a rule of thumb are shooter convention rather than sourced numbers, and they are labelled that way wherever they appear. Ballistic figures come from a point mass model using the ballistic coefficient the maker publishes, so treat them as a starting point and confirm them on paper at a measured distance. Confirm your firearm is unloaded with the action open before you mount, level, torque or bore sight anything. Verify a zero only on a supervised range or a safe, legal backstop, know what lies beyond your target, and follow the law where you hunt and shoot, including rules on land access and permitted cartridges.