Search  for anything...
HOLOSUN

HOLOSUN 407K/507K Series, Dot or Multi-Reticle, Black/FDE/Black-Out/Brown

  • Based on 2,691 reviews
Condition: New
Checking for the best price...
$260.47 Why this price?
Save $35.52 was $295.99

Buy Now, Pay Later

As low as $43.41 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Sep 1
Order within 4 hours and 31 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Color: Black


Reticle type: Multi-Reticle (Red)


Features

  • HOLOSUN 507K SERIES SIGHT - The 507K-X2 is an open reflex optical sight designed for subcompact pistol applications; It features Super LED with up to 50k hour battery life, a crisp 2MOA/32 Circle Dot, and 12 reticle intensity settings; The 507K-X2 is direct for P365X/XL, and requires an adapter plate for slides with a four-boss interface
  • HIGH PERFORMANCE - This reflex sight for handgun incorporates Lock Mode which locks the buttons preventing inadvertent setting changes when activated; The durable housing is made from 7075 Aluminum, uses Holosun's K 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
  • MULTILAYER REFLECTIVE GLASS - This gold dot sight is manufactured using optical-quality glass lenses with multilayer coatings applied to facilitate maximum light transmission and wear resistance while reducing glare and facilitating reduced power requirements; Holosun's highly reflective coatings produce industry-leading reticle intensity, clarity, and battery efficiency
  • SPECIFICATION - 1x; Parallax Free & Unlimited Eye Relief; Battery Type: CR1632; Battery Life (Hours): 50000; Brightness Setting: 10 DL; Window Size: 0.58x0.77; Housing Material: 7075 T6 Aluminum; Surface Finish: Anodize; Adjustment per Click: 1.5 MOA; W&E Travel Range: 30 MOA

Description

The Holosun 407K / 507K-X2 Series is a compact open reflex sight tailored specifically for subcompact and micro-compact pistol platforms. Designed with concealed carry and everyday use in mind, both delivers dependable performance in a streamlined and lightweight form factor. 407K-X2 features a crisp 6 MOA dot while 507K-X2 features 2MOA/32MOA Circle Dot powered by Holosun’s efficient Super LED, offering up to 50,000 hours of battery life on setting 6. Shake Awake technology conserves battery by powering the sight on with motion and turning it off when idle. Lock Mode—first introduced in Holosun's law enforcement models—prevents accidental changes to settings, making it an excellent choice for defensive carry. The "K" series is built with a rugged 7075-T6 aluminum housing and is IP67 waterproof-rated for durability in harsh conditions. It includes a side-mounted battery tray for quick and easy replacement of the CR1632 battery without removing the sight. With 12 brightness settings, users can fine-tune their aiming experience for any lighting environment. Utilizing Holosun’s proprietary “K” footprint, the "K" series is a direct fit for pistols like the SIG P365X/XL and others designed for micro red dots, though it may require an adapter plate for some slide interfaces.

Brand: HOLOSUN


Color: Black


Style: HS507K X2


Product Dimensions: 1.6"L x 0.98"W x 0.95"H


Sport: Hunting, Benchrest Shooting, Archery


Item Weight: 27.22 g


Material: Aluminum


Magnification Maximum: 1 x


Objective Lens Diameter: 20 millimeters


Magnification Minimum: 1 x


Magnification Maximum: 1 x


Objective Lens Diameter: 20 millimeters


Magnification Minimum: 1 x


Compatible Devices: Handgun


Mounting Type: Picatinny Mount


Hand Orientation: Ambidextrous


Reticle Type: Multi-Reticle (Red)


Item Dimensions L x W x H: 1.6"L x 0.98"W x 0.95"H


Item Weight: 27.22 g


Item Display Weight: 27.22 g


Color: Black


Product Style: HS507K X2


Lens Color: Red/Orange


Material Type: Aluminum


Brand Name: HOLOSUN


Sport Type: Hunting, Benchrest Shooting, Archery


Model Name: HS507K X2


Manufacturer: Holosun


Number of Items: 1


Unit Count: 1 Count


UPC: 810047071211


Included Components: Product


Item Type Name: Holster


Model Number: HS507K


Manufacturer Part Number: HS507K-X2


Warranty Description: 2 Year Manufacturer


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Title: Excellent Optic for Subcompact Handguns: HOLOSUN HE507K-GR X2 / HS507K X2.
Color: Black Reticle type: Multi-Reticle (Red)
Rating: ⭐⭐⭐⭐⭐ (5/5)Review: I recently acquired the HOLOSUN HE507K-GR X2 / HS507K X2 Multi-Reticle Reflex Sight for my subcompact handgun, and I must say, it has exceeded my expectations. This premium-grade sight offers unmatched versatility, durability, and performance.The first highlight of this optic is its multi-reticle functionality, featuring a highly precise 2 MOA dot and a wide 32 MOA circle. This setup allows for quick target acquisition while providing various reticle options to adapt to different shooting scenarios. Whether I require pinpoint accuracy or enhanced speed, the HOLOSUN HE507K-GR X2 delivers optimal performance.Constructed with robust aluminum, this sight boasts exceptional durability to withstand the harshest conditions. Even after subjecting it to extensive use, the sight remains flawlessly functional, showcasing its remarkable design and build quality. I no longer worry about accidental bumps or drops affecting its performance, as its rugged construction stands the test of time.One standout feature of the HOLOSUN HE507K-GR X2 / HS507K X2 is its innovative Shake-Awake technology. The sight's motion sensor allows it to enter sleep mode when not in use, conserving battery life. Once it detects any movement, it promptly reactivates, ensuring it's always ready for action. This feature effectively eliminates the need for manual power controls, providing convenience during crucial moments.Moreover, this reflex pistol sight is parallax-free, ensuring an accurate and precise aim regardless of the shooter's eye position. The unlimited eye relief and extensive field of view make it incredibly versatile, enabling rapid target acquisition from various shooting angles. I have noticed a significant improvement in my shooting performance, thanks to the clear and crisp sight picture offered by this optic.In conclusion, the HOLOSUN HE507K-GR X2 / HS507K X2 is an exceptional reflex sight that undoubtedly deserves a perfect 5-star rating. Its robustness, multireticle options, shake-awake technology, and parallax-free design make it an unbeatable choice for subcompact handguns. Whether for self-defense, competition shooting, or recreational purposes, this sight will undoubtedly enhance your shooting experience. Highly recommended. ... show more
Reviewed in the United States on December 26, 2023 by Rondon Thomas
    • Worth the $$
Color: Black Reticle type: Multi-Reticle (Red)
Excellent little optic. Very light, very compact, easy to use. Time will tell on durability and battery life but so far I really like it. Have it mounted on an HK CC9
Reviewed in the United States on July 24, 2026 by Amazon Customer
    • Amazing Optic
Color: Black Reticle type: Multi-Reticle (Red)
One of my favorite handgun optics. Great fit for P365. Easy sight acquisition. Very durable and easy mounting. Have not experienced any zero retention issues.
Reviewed in the United States on July 9, 2026 by jeff goodwin
    • Excellent Dot - Good Value - Extremely Pleased
Color: Black Reticle type: Multi-Reticle (Red)
Excellent red dot. The frame is very solid. While I have no intention of putting it through a torture test, I do believe that it would hold up to even unreasonable handling. I love the side battery tray. That feature alone makes it a winner over other red dots in this size. Not having to remove the optic to replace the battery (and thus not having to re-zero) is a big win in my book. Several other red dots of this size require removal to replace the battery. Battery life is stated as 50,000 hours. I can’t speak to that, but my battery is several months old and still going strong. I like the 2 MOA dot. For the 32 MOA reticle I am still on the fence. But the nice thing is that you can just have the dot showing, just have the reticle, or have both. A push of a button just cycles through the three options. Plenty of settings to take it from dim to bright. For me, the brightest setting is too bright even in sunlight. Lowest setting is almost invisible, so you should definitely be able to find the right setting to fit your preferences. It also has night vision settings, but I can’t test those. This far outpaces the Romeo Zero it replaced. I bought a second one of these for my wife. She loves it too. I switched from a different red dot to the Holosun. She switched from irons to the Holosun. We both are extremely happy with it! ... show more
Reviewed in the United States on April 30, 2021 by Texas Couple
    • Excellent optic for the price
Color: Black Reticle type: Multi-Reticle (Red)
Everything is perfect with this optic. All the features work exactly and the price point (295 at this time) is fantastic. Locally I couldn’t find this exact optic for under 375 dollars. The shake awake is really sensitive. Which leads me to think that the 1 star complaints are people who have bought firearms after playing Call Of Duty and do not understand how the principles of a reflective sight work. If you have issues torquing your weapon when you aim- this WILL show that by extreme differences in groups. If you’re new to red dots- make sure that you get this milled to your slide or you have a milled slide that fits this optic. Using a dove tail plate or an adapter for a precut factory setup will cause you to not be able to use the iron sights as cowitness. The ability for you to still use your iron sights when first sighting in and practicing acquisition of the target will show you if you’re torquing the pistol when your bring it up. You’ll think the dot is on point for it will look in line with the barrel, but if you then look at your irons you’ll see if you’re actually lined up. Many of the 1 star complaints are due to not understanding this.(people who complained they cannot zero the optic). As for the issue of reported of some of the optics being “fake”, this is not the case with this seller. The optic comes with a verify QR on the side that links directly to verify this product as what it is online. Honestly, if you think you’re gonna find a 300 dollar optic for 100 dollars just cus it’s on Amazon, you kinda deserve to get scammed. Overall, great optic. Great quaility and amazing price point. ... show more
Reviewed in the United States on February 6, 2023 by ray valencia
    • Works fine
Color: Black Reticle type: Multi-Reticle (Red)
Good
Reviewed in the United States on July 13, 2026 by Puddy
    • Homerun!
Color: Black Reticle type: Multi-Reticle (Red)
After watching many reviews on YouTube, I decided to go with the Holosun HS507K-X2 for my SIG P365. I tried the SIG Romeo's and didn't like them. Didn't like the field, didn't like that the housing was plastic and didn't like the menu selection structure. This optic is 100% compatible with the SIG P365 pistols that are optic ready. It installs using 2 T10 Torx screws. The screws come with thread locker on them. Setup was straight forward and easy. This is my first optic and all I can say is WOW!. I'm a much better shooter than I thought. I'm aging and so are my eyes. I could use these with my prescription glasses...everything was CRISP! I can enjoy shooting again. What a world of difference. While dialing it in, I was able to put 10 rounds through 1 square inch at 30 ft. I actually was laughing...I was shocked. At 55 ft I was able to put all my rounds in 3 square inches. Still laughing. Bench rested; I was able to put all my rounds into 1 square inch at 55 ft. What a world of difference. Would I buy this optic again? 100% hell yes. I highly recommend. Having 3 different reticles, a great range of brightness, huge sight picture, being able to lock your settings in, ability to adjust your shut down times. HOMERUN! ... show more
Reviewed in the United States on April 30, 2023 by Yep
    • best micro optic
Color: Black Reticle type: Multi-Reticle (Red)
I beat the hell out of this thing and it still runs. never had a problem with seeing the dot in the summer sun. Battery life is so good im not even sure if I've replaced the battery in years, I should probably do that right now come to think of it.
Reviewed in the United States on February 14, 2026 by J

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...