Holosun HS507K-X2 Compact Pistol Red Dot Sight - 2 MOA
- 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
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
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.
by Ty Solomon
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
by Wayne -
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
by Bryce -
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.