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Questions & Answers
What footprint is this? Expert Answer

The Holosun 507 Comp (Competition) utilizes the Trijicon RMR optic footprint and will be compatible with any RMR cut slide or RMR mount.

by Ethan, Gear Expert, June 13, 2023
Will this fix my Glock model 45? Will it require a gunsmith or does it attach to the rear site mount? Expert Answer

If you have the Glock 45 MOS (optic ready), you will use the #2 adapter plate included with your Glock to mount this optic. If you do not have an MOS model Glock 45, you must use a dovetail adapter plate or have your slide milled for an RMR pattern optic. The adapter plate that will allow you to install this optic can be found by using the link below:
https://www.opticsplanet.com/evolution-gun-works-trijicon-rmr-sight-mount-1-780-in-aluminum.html

by Ethan, Gear Expert, November 19, 2024
Customer Reviews
Helpful Positive Review Retired LEO, currently working for a private contractor for federal agency by Todd, Verified Owner, July 9, 2024
As always, Optics Planet comes through with competitive pricing and prompt delivery. The product, Holosun 507C (green), was a breeze to mount and easy to sight in. It is mounted on a Beretta A300 Ultima Patrol. This weapon will be used for home defen...
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3/3 found this helpful
Helpful Positive Review excellent optic by TJ, Verified Owner, February 9, 2025
I've gotten 3 of these now. For my Staccato XC, Springfield Prodigy, and now my Kimber 2K11. I CAN NOT RECOMMEND THESE ENOUGH. Huge window, multi-reticle, RMR footprint. I could go on and on. The only thing i could possibly complain about is aesth...
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2/2 found this helpful
Helpful Positive Review Holosun 507 Comp by Hubs, Verified Owner, April 29, 2025
I ordered a Stealth Arms Platypus and while I was waiting I started ordering a bunch of the toys to go along with it. It was a toss-up between this and the SRO. I ended up going with Holosun because a) it's cheaper and b) it's more rugged. I then had...
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1/1 found this helpful
Helpful Positive Review Perfect for my Shotgun! by Kevin Bisson, Verified Owner, May 12, 2025
I know many mount these on their "competition" pistols, however, I chose to mount this on my Mossberg 590A1 SBS. I love the large window size. It has held up to buckshot and slugs, and the accuracy with the green dot has been awesome. If it can handl...
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2/2 found this helpful
Helpful Positive Review For Competition by Average Glock Guy, Verified Owner, May 4, 2024
Needing to upgrade optic for Glock 34 for competition, I looked at 20 different optics for a week. I finally narrowed choice down to SRO, Holosun 509T and the new Competition model. I was leaning towards the closed emitter but the window was smalle...
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3/3 found this helpful
Helpful Positive Review Perfect sight for competition. by T T, Verified Owner, August 1, 2023
Best reticle combinations yet for me for USPSA. I have 3 other Holosuns and this is a big improvement. Available with green or red reticle, green works best for me.Large window is also much better for quick target movement. Controls work the same as ...
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9/9 found this helpful
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Product Info for Holosun HS507COMP 1x1.1x0.87in Reflex Red Dot Sight

507Comp-RD/507Comp-GR handgun sight features a large 1.1” x 0.87” objective lens for enhanced shooting performance and Holosun’s new Competition Reticle System (CRS) with Holosun’s 650nm Red/540nm Green Super LED and up to 50k hour battery life with a 1632 cell.image

CRS is an enhanced multi-reticle system with four components including a precision 2MOA dot, an 8MOA circle, 20MOA circle, and 32MOA circle with multiple combination settings to suit individual shooter preference.  507Comp-RD/507Comp-GR is made from 7075 aluminum with an industry standard footprint, and includes Shake Awake technology

Shake Awake Technology is a standard feature on all current model Holosun optics and serves to extend battery life by deactivating the optic’s LED while not in use. A highly sensitive motion sensor works to detect motion keeping the LED powered on during use. This allows for duty or concealed carry with seamless operation throughout your day or shift. At the end of your day or shift when your firearm is stored, the motion sensor will detect a motionlessness state and after 10 minutes (default setting) Shake Awake Technology powers the LED off until motion is again detected. 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 optic is ready when needed.

Specifications for Holosun HS507COMP 1x1.1x0.87in Reflex Red Dot Sight:

Manufacturer: Holosun
Color: Black
Finish: Anodize
Fabric/Material: 7075 T6 Aluminum
Magnification: 1 x
Objective Window Size: 1.1x0.87 in
Reticle: 2 MOA Dot
Illumination Type: LED
Eye Relief: Unlimited
Adjustment Click Value: 1 MOA
Emitter Type: Open
Parallax: Parallax Free
Battery Type: CR1632, Lithium Metal
Battery Life: 50000 hours
Operating Temperature: -30 - 60 Celsius
Water Resistance Level: IP67
Length: 2.67 in
Width: 1.96 in
Height: 1.25 in
Weight: 1.7 oz
Red Dot Sights-Footprint: RMR
Vibration: 5000G
Housing/Frame Material: 7075 T6 Aluminum
Storage Temperature: -40 - 70 Celsius

Features of Holosun HS507COMP 1x1.1x0.87in Reflex Red Dot Sight:

  • Up to 50,000 Hour Battery Life
  • Shake AwakeTM Technology with Last Setting Recall
  • Enlarged Window for Enhanced Field Of View
  • Competition Reticle System (CRS): 2 MOA Dot w/ 8/20/32 MOA Circle - Parallax Free & Unlimited Eye Relief

Package Contents:

  • Holosun HS507COMP 1x1.1x0.87in Reflex Red Dot Sight
  • T10 L Key
  • User Manual
  • CR1632 Battery
  • Lens Cloth

Holosun HS507COMP 1x1.1x0.87in Reflex Red Dot Sight Orderable Models

List of Orderable Models

Holosun HE507COMP Open Reflex Optical Sight, 2 MOA Dot, Red CRS Competition Reticle, Black, HS507COMP , MPN: HS507COMP , UPC: 810047072928 , Code: 28Y-RD-HOROS-HS507COMP
Holosun HE507COMP Open Reflex Optical Sight, 2 MOA Dot, Green CRS Competition Reticle, Black, HE507COMP-GR , MPN: HE507COMP-GR , UPC: 810047072911 , Code: 28Y-RD-HOROS-HE507COMP-GR
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