DAILY DEAL Exp. 11/19, 12pm EST
Holosun Micro Sight, Dot Reticle with Shake Awake - HS403GL

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Holosun Micro Sight, Dot Reticle with Shake Awake - HS403GL

In stock

Regular Price: $ 235.28

Special Price $ 119.99

Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

SKU: 52665
UPC: 760921087503
  • Light Source: LED
  • Reticle: 2MOA Dot
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes
  • Battery Type: CR2032
  • Battery Life: Up to 50,000
  • Solar Power Alternative: No
  • Brightness Setting: 10 Daylight & 2 Night Vision Compatible
  • Housing Material: 6061 Aluminum
  • Adjustment per Click: 0.5 MOA
  • W&E Travel Range: + - 50 MOA
  • Weight: 4.3 oz
  • Height: 1.63”
  • Length: 2.44”

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The 403GL is a small compact red dot sight with side battery housing and H/L adjusting turret options. Employing Holosun’s LED technology, the lifetime for one CR2032 battery can be up to 5 years. Holosun’s “Shake Awake” technology automatically turns the optic on at the slightest movement. When the optic senses no movement, it will go to sleep.Parallax free with unlimited eye relief.

  • Designed for day and night use
  • New advanced technology LED allows up to 50,000 hours of operation on one CR2032 battery
  • 2 MOA on dot size
  • Reduced training time and ammunition
  • Unlimited field of view
  • Parallax-free with unlimited eye relief
  • Unaffected by extreme weather conditions
  • Durable and reliable construction
  • Low mount and 1/3 Co-witness mount included


For widest variety of firearm optics at the best prices, shop Palmetto State Armory!

SKU: 52665
SKU 52665
Brand Holosun
Daily Deal Yes
Daily Deal Expires 11/19
Youtube Video No
Free Shipping? Yes
Free Shipping Qty No
SKU: 52665

Questions and Answers

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Browse 33 questions Browse 33 questions and 34 answers
will this mount to a g23 glock accessory rail?
jim shawny on Oct 25, 2018
BEST ANSWER: Were you dropped on your head as a kid?
will this sight fit my PSA 16" M4 Nitride Freedom Rifle, Flat Dark Earth ?
Alan N on Oct 25, 2018
BEST ANSWER: Yea, no matter what color it is
can i mount this to my glock 23 accessory rail?
jim shawny on Oct 25, 2018
BEST ANSWER: Naw family. It’s a red dot optic not a laser.
Does it “shake awake” while riding in vehicle?
BBlack on Oct 27, 2018
BEST ANSWER: No, the sight has a built-in GPS to detect speeds over 10 mph (16.1 kph) and it disables the shake awake feature.
will this mount to a glock 23 accessory rail?
jim shawny on Oct 25, 2018
BEST ANSWER: Wow, Jim... You've asked this same question 4 times. Are you...ok???
Do you actually HAVE a Glock 23? The accessory is UNDER the barrel. The Holosun is a red dot SIGHT.
To use a red dot sight, you have to look through it.
So, how is that going to work?
Will this fit a CZ-P 07 9MM?
Gacks on Oct 23, 2018
BEST ANSWER: Yes but the the slide must be milled and if your gonna do that get an rmr
will this mount onto the 40sw gen 4glock accessory rail?
jim shawny on Oct 25, 2018
BEST ANSWER: Probably will but why? It’s not a laser, it’s a red dot and pretty large for a glock if it was milled.
Can it be manually turned on/off? Thanks.
Andy Tracey D on Oct 27, 2018
BEST ANSWER: Andy, use the internets and look at the manual on the Holosun site.
Yes, you can turn the sight on and off.
But with a 50,000 hour ON life PLUS shake to wake to greatly extend that, WHY, WHY, WHY would you want to turn it off?
How high above the bore of a flat top AR is the sight? I need to know to run some ballistic data. Thanks.
George M on Nov 2, 2018
BEST ANSWER: George, YOU have to run some ballistic data??? This sight, like most other decent quality red dot sight, is set up for 1/3 Co-witness for every flattop AR platform. The Holosun site, which you should be referencing, says "Central Height (in) 1.63"
Now, go crazy with your calculations...
Is this as good or better than the romeo 5?
Chris M on Oct 29, 2018
BEST ANSWER: At least as good as in my opinion. I have both and maybe slightly favor this one over the Romeo. Not an Eotech, but a good buy and reliable for the price.
It states "low mount", but I bought a Romeo 5 which sits too high on my CZ Scorpion; will this work?
Lanny V on Nov 10, 2018
BEST ANSWER: Yes, it works great on my Scorpion. Just don't use the riser and you're good to go.
Can this handle the recoil of 7.62x39mm?
Jordan D on Nov 1, 2018
BEST ANSWER: Yes. Have been running a 503 on my WASR ak for a year now with no problems.
Can I use this with a Vortex VMX-3T magnifier?
Brett F on Oct 31, 2018
BEST ANSWER: Already have the 3x, RoyD. Considering your suggestion though, thanks. Have a good one you recommend?
Is a low mount included?
Carlos G on Oct 26, 2018
BEST ANSWER: Yes. It comes with the mount pictured and also a low mount.
It will also fit any Aimpoint microdot mount.
This is my first rifle to look into scoping. Will this fit a Ruger PC Carbine?
Shampoo on Nov 9, 2018
Does it have the red dot or green dot? Thank you
Tim S on Oct 29, 2018
BEST ANSWER: This has a red dot.
Will this work on an AR or AK platform?
Francis S on Oct 26, 2018
BEST ANSWER: Yes. That's what most people will probably buy it for.
Will this fit a beretta px4 storm type F?
shawn M on Oct 23, 2018
BEST ANSWER: If it has a rail.
Please be patient, I have never owned a rifle before with an accessory rail, my CAR15 is a pre-ban with old-school carry handle... I am building some new flat-tops though, and I am wondering if this site is rail-specific to any particular manufacturer?
Joseph B on Nov 9, 2018
BEST ANSWER: Nope! It'll fit any 1913 rail.
Is the parallax point-of-aim consistent with the point-of-impact with the red dot remaining parallel to the bore of my rifle, no matter what my viewing angle is relative to the optical axis of the sight?
Ronald E on Nov 7, 2018
BEST ANSWER: That made my head hurt.
Can the shake awake be disabled so it remains on until actively turned off?
Yeah sure on Nov 2, 2018
BEST ANSWER: Check the Holosun site for the manual. The sleep timer can be set at 1 hour to 8 hours in 1 hour increment but I don't think it can be disabled.
You can definitely turn the sight on and off.
But with a 50,000 hour ON life PLUS shake to wake to greatly extend that, WHY, WHY, WHY would you want to turn it off?
Will this see past a gas block front sight?
TheRog on Oct 27, 2018
BEST ANSWER: It will probably mount so once zeroed the dot sight on your front sight post or close to it.
Will this run on a 300 BLK?
Rolo2 on Nov 13, 2018
Can you still use your fixed sights with this sight mounted?
philip s on Nov 12, 2018
Will this hold up to a 450 bushmaster?
Stephen B on Nov 11, 2018
So this is a red dot and alarm clock
in one?
Reeper on Nov 10, 2018
Will this fit any mount an aimpoint t2 fits? Do all holosun red dots fit any aimpoint micro mount?
Craig L on Nov 9, 2018
What sights do the mounting pattern for this sight match?
Lyndon J on Nov 9, 2018
IS there a mount for exact co-witness?
Lyndon J on Nov 9, 2018
Will this work on a crossbow ?
William P on Nov 8, 2018


4.4 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Absolutely Super
Very well made. I like this much more than my Vortex Spark, in every way.
November 16, 2018
3 weeks ago
Good for the money. Dot is crisper than my vortex crossfire.
Best red dot I have as far as crispness. Switched the mounts and one of the screws is stripped from the factory. A bummer but three should hold it tight enough.
November 14, 2018
3 weeks ago
Dumping off last of Discontinued item
It has been difficult finding useful LONG TERM reliability reviews for this HS403GL from regular purchasers. I have found some unsettling reviews to put it kindly. For the one day price this is a tempting deal. Not finding this product on Holosun's website (there is a very similar model in Green) and then seeing MidWay and Brownells listing it as "DISCOUNTINUED from the manufacturer" makes me question why.
November 14, 2018
Holosun to top off my PSA 10.5" AR 15 Pistol Build
PSA 10.5" CARBINE 5.56 NATO 1:7 NITRIDE 12" SLANT M-LOK MOE EPT SBA3 PISTOL KIT W/ MBUS SET & NIB BCG + PSA Holosun HS403GL. This Holosun HS403GL completed my PSA 10.5 pistol build, along with a UTG .75" riser for absolute co-witness, Magpul M-LOK polymer rail, Magpul M-LOK sling mount, and Magpul K2+ grip. I have a Holosun HS403C Solar on my PSA Freedom 16" AR15 and at this sale price it completed this build as I am a fan of the Holosun products and have never had an issue. Its has very nice features that other reviewers mentioned so it was priced right for this build. Thanks PSA!
With UTG .75" riser gives it a 1.47" center which Magpul MBUS rear is 1.42 so very close.
With UTG .75" riser gives it a 1.47" center which Magpul MBUS rear is 1.42 so very close.
November 13, 2018
1 week ago
Shake the [...] out of it!
I made the mistake of buying two of these at the sale price with free shipping. I bought explicity for the "shake awake" feature.

It takes a minimum of one hour to shutdown (up to 8hrs in hour increment settings). And to "wake it up" you have to shake the hell out of it. This is something a simple mercury switch will do...

I should have bought another Sig romeo5 with the pmags and skipped these! The Sig doesn't even promote based on shake awake but does it much better.

The Sig will sleep after 120 SECONDS and even the slightest movement will wake it up. Skip this and go for the Sig/Pmag deal if that's what you wanted the holosun for.
November 13, 2018
3 weeks ago
Shipping was quick, sight came very well packaged. My first Holosun sight. Put it on a 9mm AR, sight in was very quick, clicks seemed uniform and repeatable. Dot looks uniform even to my astigmatism hampered eyesight. Time will tell but for the price, seems a good buy.
November 8, 2018
Great Value
This Upper end red dot offered here is quality in a micro package. YOU WILL NOT FIND A BETTER PRICE ANY WHERE ON THIS ITEM THAN HERE AT PSA.
November 6, 2018
2 weeks ago
Just got mine. Shipped gast and at an unbeatable price. The optic is pretty impressive given its price. Great home defense and post hurricane anti looter optic.
November 3, 2018
Premium Quality at a Budget Price
It looks like I get to have 'FIRSTIES' review in PSA.
The Holosun red dot sights are GREAT!!!
The HS403GL arrived yesterday and I took it to the range today. It looks great on the outside and even better on the inside. The dot is crystal clear and the 2 MOA LED is laser sharp. The glass is beautifully clear. I like my red dot sights mounted closer to the back and that lets you instantly find this one's dot and get on target fast.
The sleep timer is set to 8 hours by default but I adjusted it down to 1 hour. At that setting, the 50,000 hour projected battery life should be extended to FOREVER. Ha!
I've had an HS403A mounted on another rifle for a couple of years and have always been delighted with it and have been wishing for another.
The HS403A has the battery concealed under the tube, so there's no batter bump on the side to take away from the field of view. I was afraid the battery housing on the HS403GL would be be an obvious blob but it really isn't. There are already the W/E turrets sticking out and the battery housing just slightly adds to that.
This is a great sight.
It looks GREAT and there's no real need for the MBUS. This sight is THAT reliable.
I love the look.
November 3, 2018
3 weeks ago

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