




🎯 Lock on. Stay ready. Dominate every shot.
The HOLOSUN HS403C / HE403C-GR is a cutting-edge 20mm micro green dot sight designed for rifles and carbines, featuring a 2 MOA reticle, 50,000-hour battery life, and innovative Solar FailSafe technology that ensures continuous operation even if the battery dies. Built with rugged 6061 aluminum and IP67 waterproof rating, it offers 12 brightness settings with automatic adjustment, multilayer reflective glass for superior clarity, and Shake Awake technology for instant activation. Perfect for professionals demanding reliability, precision, and adaptability in any lighting or weather condition.

| ASIN | B07B4HMMLY |
| Best Sellers Rank | #182,530 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #569 in Gun Sights |
| Brand | HOLOSUN |
| Brand Name | HOLOSUN |
| Color | Black |
| Compatible Devices | Rifle |
| Customer Reviews | 4.6 out of 5 stars 1,059 Reviews |
| Field Of View | 30 Degrees |
| Global Trade Identification Number | 00605930624809 |
| Included Components | Product |
| Item Type Name | Holster |
| Item Weight | 4.32 ounces |
| Magnification Maximum | 1 x |
| Magnification Minimum | 1 x |
| Manufacturer | HOLOSUN |
| Material | Plastic |
| Material Type | Plastic |
| Mounting Type | Weaver Mount |
| Night vision | Yes |
| Objective Lens Diameter | 20 Millimeters |
| Product Style | Green 2 MOA Dot |
| Reticle Type | 2 MOA Dot |
| Sport | Hunting |
| Sport Type | Hunting |
| Style | Green 2 MOA Dot |
| UPC | 605930624809 |
| Warranty Description | 2 Year Manufacturer |
R**Y
Great pick. Worth it and more
Got this at a great price. Out of the box the sight was on and was visible without a battery. Vary impressed. Mounted on my ar15 and it looks great. It's a 1/3 Co witness and easy to shoot through with iron sights. I had a concern at from the start because the battery compartment wasn't like the picture. It was a slip on battery holder unlike the picture with the 2 screws. But after contacting the company they said its the newer model, and it is still water proof as advertised. Wile I was messing with it I noticed that there are 3 settings on solar power. It will auto adjusts so the ambient light and pick a setting. On manual it will go from barley visible to a giant red dot that is easy to pick up. Looking into the dot it's not a perfect circle, more like a real small line but not as noticeable unless your really looking for it. After I Co witnessed it I went to the range and it held zero great, shot out to 400 yard with out a problem. 5 months later and about 700 round , it's still kicking vary impressed and will keep testing it and updating as time goes on. The only con I have is that it won't take normal t-1 risers but the one it came with is solid
J**N
A great reflex sight by a well known company
This sight is everything a reflex sight should be. Where the brightness automatically adjusts to the light is honestly incredible. The shake awake is also a life saver. To have the confidence that the sight just turns on with out having to fumble with a button is just perfect. Why doesn’t all good named companies use this option on all their sights. And the cost is honestly to low for the value of the sight. Now it is a little different when setting zero. It is not near as touchy as other sights. You can get frustrated when adjusting the sight. You will have to be more generous in the adjustments. All in all I will recommend this sight to anyone. Also it is just a 2 MOA DOT. That is all I wanted. I didn’t want the options for different reticles. That is just me.
K**Y
Great red dot with clear detail and easy to use.
Really enjoy this on my Springfield saint pistol. This is running on a short barrel .223 pistol and it performs very well. Easy to adjust with the built in turn caps to dial it in and the always on feature and auto off are a no brainer to reserve power. In addition the anticipated battery life is stellar and looking forward to getting many hours out of this unit. The dot is clear and crisp which makes targeting and keeping a tight group easier but the ability to crank up the brightness is nice in case of a bright day to still clearly see the dot in any environment is great. So far no functionality issues and mounting seems rock solid. I would definitely tell a friend to have no reservations in buying this compared to the over priced aimpoint scopes. This hasn't been tested over the long haul but it seems to be of solid construction. Great piece of hardware and if I have a similar gun philosophy I will likely put this same scope on that gun as well.
A**R
Amazing optic
This is well worth the money. Every feature is as-described. If you're used to the off-brand sights, you'll be a believer in Holosun after buying this. The adaptive brightness is amazing. And any movement turns it right on. Great utility.
Y**R
Great value
At first I was disappointed, I couldn’t see the red dot and nothing worked. Then I realized the battery was installed upside down. Fixed and now it works excellent. Very happy with quality and features. 4 stars because instructions are lacking.
C**A
Great life battery.
Great quality. Perfect for quickly acquiring a target.
T**S
Real Nice
Package came a day early- that's always great! Out of the box, I was immediately satisfied... Solar power was on instantly and the red dot was bright and crisp. This came with the taller mount already on it and I installed it on the pic rail in under 30 seconds. Mount feels lightweight but plenty sturdy and sits tight on the rail. The red dot is set up as a 1/3 co-witnessed with my flip up irons, and the sight picture is really good. The red dot is washed out in the picture that I provided due to auto focus on my phone, but rest assured in person, it's crisp 2 MOA... Glass is clear- dot is bright and crisp, unit adds very little weight to my rifle. Based off of this initial impression, I am very pleased and feel like this is a great buy for the money. I still need to get to the range and use this thing, but if the remainder of my experience is as good as my first impression, this red dot is the real deal.
G**2
Red Dot Optic
Explored red/green dot option for weapons. This worked very well for the time it was in use.
Trustpilot
2 weeks ago
2 weeks ago