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Holosun 507COMP Red Dot Sight: New Features

Last updated: March 2026

Quick Answer: The Holosun 507COMP is an open-emitter red dot designed specifically for competition shooting, featuring a large 32 MOA circle-dot reticle for fast target acquisition and LED efficiency mode providing 50,000+ hours of battery life. It uses Holosun’s shake-awake technology and is compatible with Glock 17/34 and similar competition platform slides.

Estimated reading time: 6 minutes

Are you an enthusiast, sports shooter, or self-defense advocate? At NDZ Performance, we’re as passionate about firearms as you are. Whether it’s the thrill of competition, the joy of hitting bullseyes, or peace of mind from self-defense preparation, we share that enthusiasm. Sit back and discover something making waves in the shooting world: the new Holosun 507COMP competition red dot sight. You won’t want to miss this.

What Makes the Holosun 507COMP Stand Out From Other Red Dots?

The Holosun 507COMP stands out with its oversized 1-inch wide by 0.8-inch tall viewing window, durable aluminum body construction, tool-free battery tray access, and a plateless mounting design that simplifies installation. Its competition-specific reticle offers three selectable circle sizes at 8, 20, and 32 MOA in both red and green options for maximum versatility.

Imagine standing on the range with a view wider and taller than almost any other sight. But it’s not just about size; it’s packed with features making it stand out.

At NDZ, we appreciate when manufacturers understand shooters’ needs. The 507COMP boasts an aluminum body for durability, easy access to the battery tray, and a design that doesn’t require unnecessary plates for mounting. This makes it a fantastic choice for any shooter.

How Does the 507COMP Compare to the Trijicon SRO and Older Holosun Models?

The Holosun 507COMP offers a larger viewing window than both the Trijicon SRO and previous Holosun models, delivering faster target acquisition at a lower price point. Its triple-reticle system with 8, 20, and 32 MOA circles provides more flexibility than competitors, and the intuitive MOA configuration makes switching between shooting scenarios straightforward for competition use.

The 507COMP is compared to older models and competitors like the Trijicon SRO. Its bigger window enhances target acquisition, providing value for its price. Understanding MOA is simpler with Holosun, making configurations intuitive for different shooting needs.

While the 507COMP may not be available at NDZ Performance yet, we offer other excellent Holosun red dot sights alongside various customization options for your firearms. Consider our RMR cover plates and slides with RMR cuts for enhancing your setup.

Is the Holosun 507COMP Worth Buying for Competition Shooting?

The Holosun 507COMP is worth buying for competition shooters who need fast target transitions and a customizable reticle system at a competitive price point. Its large window, multiple MOA circle options, and durable aluminum construction make it a strong choice for USPSA, IDPA, and action shooting sports where speed and reliability matter most.

Moreover, explore our T.R.O.I. Custom Slides for Glock models, available in impressive finishes like Armor Black Cerakote and Battle Worn Red White & Blue US Flag Cerakote. Pair these with Holosun optics for performance and aesthetics that’ll turn heads at any range.

What Did NRA American Rifleman Say About the Holosun DRS-TH?

NRA American Rifleman’s editor Brian C. Sheetz awarded the Holosun DRS-TH an Editor’s Choice designation for its innovative Fusion Thermal Overlay technology, IP67 waterproof certification, and 256×192-pixel thermal sensor resolution. This digital reflex sight represents Holosun’s push into cutting-edge optic technology that blends traditional red dot functionality with thermal imaging capabilities.

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What is the dot size on the Holosun 507COMP?

The Holosun 507COMP offers a dual reticle: a 2 MOA center dot paired with a 32 MOA circle. The circle provides fast target acquisition at close range while the dot enables precision at distance. The 2 MOA dot is usable alone for long-range precision work in competition.

Is the Holosun 507COMP compatible with standard Glock 17 optic cuts?

The 507COMP uses Holosun’s HS507 footprint, compatible with Glock MOS plates and aftermarket slides cut for the Holosun 507/508 series. It is not compatible with the smaller Trijicon RMR footprint without an adapter. Verify your slide’s optic cut footprint before purchase.

How does the 507COMP differ from the 507C for competition use?

The 507COMP adds an integrated recoil-absorbing shroud and shock-resistant mount designed for high-volume competition use, where optic durability under repeated cycling stress is critical. The 507C is a more versatile carry optic; the COMP prioritizes shock resistance and reticle size for action shooting sports.