Holosun HS507K-X2 Compact Pistol Red Dot Sight - 2 MOA

Manufactured by Holosun
SKU: HS507K-X2
MPN: HS507K X2
Manufactured by Holosun
5 Reviews

In Stock

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The Holosun 507K X2 is an open-reflex Red Dot sight made specifically for concealed carry applications. Features include the Holosun Super Led with up to 50k hours of battery life, a Multi-Reticle System, Shake Awake, and Lock Mode. AP67 Waterproof and concealed-carry friendly, this sight is made for success. Manufactured from 7075 Aluminum and anodized, the frame of the Holosun 507k red dot is made for durability, and light weight. This Holosun Compact Pistol Red Dot is designed to be smaller and lighter weight, making it perfect for your concealed carry pistol.

  • Reticle: 2 MOA Dot & 32 MOA Circle
  • Light Wavelength: 540nm
  • Reticle Color: Red
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes
  • Includes Multi Tool
  • Includes Lens Cloth
  • Includes User Manual
  • Fits Shield RMSc pattern mounts
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BaseNot Included
Battery Life50,000+ Hours
Battery TypeCR1632 3V Lithium Coin
Brightness12 Settings
Click Value1 MOA
FinishHardcoat Anodized
MaterialAluminum - 7075-T6
Mount CompatibilityHolosun 407K/507K
Night Vision CompatibleNight Vision Compatible
Reticle2 MOA Dot 32 MOA Circle
Reticle ColorRed
Warrantylimited lifetime
Weight1 oz.
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

5 reviews

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Nice sight, but double check mount compatibility.


Nice compact sight, noticeably smaller than non-compact 507. I mounted on a Keltec CP33 with a picatinny mount from Shield. JP also has a picatinny mount. Both require modifications. You must file 1 set of mounting posts flush with mount, and 2nd set of posts must be filed down to match depth of mounting post pockets on sight. Mounting screw holes in sight line up perfectly with threaded holes in mount. Mounting screw holes are spaced narrower than standard 507 sights.



Really like this so far! Mounting was super easy. Easy to operate. 3 reticle options are very nice.

Great sight for subcompacts! NEEDS ACSS Vulcan reticle!!


I've been a happy owner of many Holosun green dot sights. This one is no different. The 3 reticle system currently is nice to have, but this would really be awesome with the ACSS Vulcan reticle system!!

Direct mount to Brownells Glock 48 RMSc slide

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The 507k mounted directly to my brownells G48 slide for my non mos 48. The optic itself is great and zero'd quickly and held zero. I was surprised to find that the two circle reticle options were distracting when trying to acquire a fast sight picture and ended up using the 2moa dot only for both speed and precision. This is my first pistol with a red dot sight and my first Holosun but so far no issues. Appears to be well made and durable from the videos I've seen online for durability tests. Only thing I would add for other first time pistol red dot buyers is to compare against the 407k directly first to see if the reticle options is worth the extra $70.

Springfield prodigy owners beware

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I have two of these. One on a Glock 17 MOS with an aftermarket DPP plate and it fit no problem.
Now with the Springfield Prodigy DS 4.25 that is a different story. I bought the 12b plate for it from the Springfield website. the optic came with the correct thread pitch screws set the only problem was, was that the screws were too long. so my solution was simply grinding the screws down using a Dremel tool to get them short enough so I can properly torque them down.

In terms of performance. I have it zeroed on the Glock 17 and it operates flawlessly. no reticle drift or brightness issue and being able to replace the battery without needing to take the optic off is a huge plus for me.