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Holosun HS407K Micro Reflex Sight (6 MOA Green Dot Reticle)

BH #HOHE407KGRX2 • MFR #HE407K-GR X2
3 reviews
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Holosun HS407K Micro Reflex Sight (6 MOA Green Dot Reticle)
Key Features
  • For Concealed Carry and Personal Defense
  • Compatible with Most Factory Iron Sights
  • Green Super LED 2 MOA Dot Reticle
  • 50,000 Hour Battery Life
Made for narrower, subcompact handguns, this HS407K Micro Reflex Sight from Holosun features a green, 6 MOA dot reticle and a multicoated lens for clear and unobstructed targeting. Built with 7075 T6 aluminum, the sight has a Holosun K footprint that is directly compatible with the Sig Sauer P365X and P365XL, but requires an adapter plate for slides with a four-boss interface. The sight's green Super LED is powered by a 1632 battery, provides ten daylight brightness levels and two night-vision settings, and delivers up to 50,000 hours of battery life.
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$239.99
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Reticle Size
6 MOA
2 MOA
Reticle Color
Green
Red
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Holosun HE407K-GR X2 Overview

Made for narrower, subcompact handguns, this HS407K Micro Reflex Sight from Holosun features a green, 6 MOA dot reticle and a multicoated lens for clear and unobstructed targeting. Built with 7075 T6 aluminum, the sight has a Holosun K footprint that is directly compatible with the Sig Sauer P365X and P365XL, but requires an adapter plate for slides with a four-boss interface. The sight's green Super LED is powered by a 1632 battery, provides ten daylight brightness levels and two night-vision settings, and delivers up to 50,000 hours of battery life.

Optical Performance
  • 1x magnification is ideal for close-quarters engagement
  • Unlimited eye relief when using both-eyes-open shooting techniques allows for complete situational awareness
  • Multiple layers of antireflective coating on all optics ensure bright and clear views through the sight window
Reticle Details
  • 6 MOA aiming dot for close-range shooting
  • 12 brightness settings, including two suitable for night vision gear
  • Solar Failsafe technology powers reticle after battery failure
  • Shake Awake technology with last setting recall
Use and Handling
  • 1 MOA adjustment per click impact point correction
  • +/- 50 MOA windage and elevation adjustments
  • Lock Mode protects settings from accidental adjustment
Construction Details
  • Directly compatible with the Sig Sauer Sig Sauer P365X and P365XL
  • Durable matte black 7075 T6 aluminum housing
  • IP67-rated shock, fog, and waterproof
  • Runs on one included CR1632 battery
UPC: 810047071372

Holosun HE407K-GR X2 Specs

Key Specs
Reticle
6 MOA Dot
Reticle Color
Green
Power Source
1 x CR1632
Runtime
50,000 Hours
Magnification
1x
General
Reticle
6 MOA Dot
Reticle Color
Green
Eye Relief
Unlimited
Power Source
1 x CR1632
Runtime
50,000 Hours
Sight Window Dimensions
0.6 x 0.8" / 14.7 x 19.6 mm
Optics
Magnification
1x
Anti-Reflective Coatings
,
Impact Point Correction
60 MOA (Windage & Elevation)
Adjustment per Click: 1 MOA
Physical
Environmental Resistance
Dust/Water-Resistant (IP67)
Operating Conditions
-22 to 140°F / -30 to 60°C
Storage Conditions
-40 to 158°F / -40 to 70°C
Materials
Aluminum
Dimensions
L: 1.6 x W: 1.0 x H: 1.1" / L: 40.6 x W: 24.9 x H: 29.1 mm (Sight)
Weight
1 oz / 28 g (Sight)
Packaging Info
Package Weight
0.42 lb
Box Dimensions (LxWxH)
4.7 x 4.7 x 2.2"

Holosun HE407K-GR X2 Reviews

Holosun 407K - Best Bang for the Buck

By William
Rated 5 out of 5
Date: 2026-04-02

I debated between getting the Holosun 407K and 507K for my Smith & Wesson Equalizer. After examining each for my purposes and budget, I chose the 407K Green Dot with 6 MOA. The main differences between the two optics are price and reticle system—the 407K has a 6MOA dot, and the 507K has a multiple reticle system (MRS) with three options: a 2 MOA dot, a 32 MOA circle, and a combined reticle. Both are open emitter optics. The more expensive Holosun EPS Carry has a closed-emitter optic, meaning it has a hood that protects the laser from debris. If you're planning to shoot or practice within 25 or even 50 yards, as I do, the 6MOA Dot is the best bang for the buck. If you want to reach out to 100 yards or better, the 507K with the 2MOA dot is better. My Equalizer is purposed for EDC/home defense, and is optics-ready with a compatible RMSc footprint. The Holosun 407K comes boxed with 3-pairs of flat head (FH) T10 TORX mounting screws—M4 x 9.8 mm, #6-32x3/8" and #6-32x1/2", each with Loctite pre-applied. A 5/64" (or H2mm) hex key (Allen) wrench is needed to remove the Equalizer's sight cover plate screws. Instead of the Holosun's TORX screws, I installed 5/64" hex key FH screws with the required #6-32x1/2", applied Loctite Blue 242 to the threads, and torqued them to 15 inch/lbs with a Wheeler F.A.T. Wrench. I initially sighted the dot using a Wheeler Professional Laser Bore Slighter and found it to be factory zeroed very close at 25 yards. Personally, at close range, I experience faster target acquisition with a larger dot. I found that lowering the brightness level makes the 6 MOA dot visually smaller and more comfortable to view. With the 2MOA dot, I tended to concentrate more on finding the dot, which was exacerbated by its shakiness in the viewing screen. I don't find the MRS with the circle to be of value since I prefer to practice only with a dot. The Green dot is better in my opinion and easier to see, especially in daylight. Co-witnessing with the iron sights isn't a problem either, should the battery fail. I also found the environmental working temperature for a 407K is -22°F to +140°F, and a 507K is -4°F to +149°F. So, for me in a Northern climate, the 407K may be the better buy. Be sure to register the unit for the warranty. The Holosun 407K is a great, affordable optic. B&H further sweetened the purchase with a free Klean Kanteen TKWide Insulated Bottle—combined with the best product pricing and customer service. Thank you, B&H Photo.

Holosun Green Dot Sight

By Brian
Rated 5 out of 5
Date: 2026-03-30

I tried to find one of these at the local store level and all had the 507K with three variants that I did not want. Found this on B&H and not only was it the one I wanted, but it was over $100 less expensive than all local stores. I put this on a Sig Sauer P365 and installation was vary easy because all tools are supplied. I did put some Loctite blue tube glue on the screws, which I was directed by the local firearms store to do if I was going to buy one to reduce screws coming loose over time. The sight is motion activated to wake up for fast use. Definitely would purchase another one.

See any errors on this page?

What mounting screws are included? Does it come ...

What mounting screws are included? Does it come with (2) #6-32 x 1/2" Torx screws?
Asked by: William
Yes, the Holosun HS407K Micro Reflex Sight (6 MOA Green Dot Reticle) comes with 2 mounting screws.
Answered by: Dan W
Date published: 2025-08-05
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