Reviews & Ratings for Holosun HS507COMP 1x1.1x0.87in Reflex Red Dot Sight

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

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Most Helpful Positive Review Perfect sight for competition.

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 other Holosun models. Holosun has a winner.

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Best Value

by Butch, Verified Owner from MN, United States Written on August 7, 2026

Great optic, dot or circle or dot/circle's. No annoying dash lines at the 12-3-6-9 o’clock position that clutter up the sight window with no purpose.

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Big Honkin' Red Dot HS507COMP

by Banjo Shooter, Verified Owner from MI, United States Written on August 5, 2026

I want to thank OP for providing me this HS507COMP, with a veteran discount! I purchased this for my new Bul Armory, Blaze race gun. The multiple reticles patterns are big and honkin', you can't miss them. The variable brightness along with the auto on/off is great. The glass opening and clearity is impressive for this Red Dot. Holosun did a good job engineering this sight for consistent performance even though it takes a violent ride on the top of a double stack, 1911 slide. I've put over 500 rounds through my Blaze and the COMP hasn't failed once. I highly recommend this sight for Competition Shooting or for anyone that wants a Big Honkin' Red Dot sight.

Pros:

Big and Honkin'

Cons:

It could be bigger, Super Honkin' size

Best Used for:

Any shooter

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Holosun 507 Comp

by ER, Verified Owner from AZ, United States Written on July 31, 2026

I’ve tried over a dozen different red dot optics and came back to the 507 Comp. My favorite dot/circle displays are the 2moa dot with the 8 moa circle or 20 moa circle. Love that it doesn’t has the clutter of the dash lines most other brands put at the 4 cardinal positions.

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Masterpiece on a 2k11

by Jon, Verified Owner from VA, United States Written on June 1, 2026

Mounted this 507comp on my new 2k11 Pro Comp. Wide window and follow up shots is fast due to target window. My buddy who has an SRO is now eying one to replace what’s mounted on his Atlas

1 of 1 found the following review helpful.

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Customer service

by Daniel Hidalgo, Verified Owner from LA, United States Written on May 26, 2026

When original sight was ordered it was out of stock. CS was able to find me a great replacement and get it shipped quickly for use in a match the next weekend!

Best Used for:

competition

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507 comp is great

by Daniel Hidalgo, Verified Owner from LA, United States Written on May 25, 2026

Well made, good price.shipping was fast and mounting was easy. Holds zero well.

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Functional, Reliable and Affordable

by Ivan, Verified Owner from AZ, United States Written on May 19, 2026

I have several Holosun optics including this 507 Comp which I have mounted to my Glock 17. I have about 5-6k rounds through the G17 with this optic and I have experienced no malfunctions whatsoever. The "Shake Awake" feature works perfectly so the battery life is great. The multiple reticles are very useful although, I just use the dot. The large window is clear with no distortion visible to my eyes and allows for a great sight picture without obstruction. The RMR footprint is easy to find adapter plates for, if needed, depending on your firearm.
I like this one so much I bought another for a Glock 21. 10/10 would recommend.

Pros:

Multiple reticles
Large, clear window
RMR Footprint
Reliable "Shake Awake" feature
Top-loading battery for easy battery change

Cons:

Maybe a bit pricey if not on sale but not bad

Best Used for:

Any style of pistol shooting.

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Perfect on a Kimber 2k11 Pro Comp

by Jon, Verified Owner from VA, United States Written on May 18, 2026

I mounted this optic in a Kimber 2k11 Pro Comp and shoots very accurate. I was contemplating on a Trijicon SRO but majority led me to choosing the 507comp due to retical options and mount point. My friend who uses an SRO is not happy with his and is also getting the 507comp

Pros:

wide view

Cons:

cost

Best Used for:

competition
speed shooting

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Great Optic

by Jim, Verified Owner from MA, United States Written on May 5, 2026

I paired this with my Canik TTI Combat Smoke as a plinking and target gun. The optic is clear, parallax is great, and as always very easy to adjust. The different dots make it easy to customize to your spec and adjust brightness. I went with the “red” dot and have really liked it. I have used it in the day time outdoors and have been able to see it easily. Also very easy to zero and pick up your target in the large lens.

Pros:

Clear
easy to pick up target
Crisp & clean

Cons:

None

Best Used for:

comp shooting, duty, or home defense!

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Holosun 507 comp

by Dave, Verified Owner from CA, United States Written on May 2, 2026

I put this red dot on my stealth arms platypus and it works great. I like the different options that you have on
the reticle. I would highly recommend this product

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Reviews & Ratings for Holosun HS507COMP 1x1.1x0.87in Reflex Red Dot Sight — 94 reviews — Page 1