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Holosun HS510C Open Reflex Rifle Optic

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$301.99
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Holosun HS510C Open Reflex Rifle Optic is built for shooters who want a fast, wide sight picture, dependable durability, and modern red dot performance for rifles, carbines, PCCs, and shotguns.

Please allow up to six days for item to ship.

This optic is designed around speed and versatility, making it a strong fit for home defense, range work, competition use, and general-purpose rifle setups. Holosun positions the HS510C as a wide-view open reflex sight for long-gun applications, with an aluminum housing, a titanium hood for added shock resilience, and a QD absolute co-witness mount with a 1.41-inch dot height.

What makes this optic stand out is the blend of speed-oriented design and proven feature depth. The HS510C uses Holosun’s Multi-Reticle System, allowing the shooter to choose between a 2 MOA dot, a 65 MOA circle, or a circle-dot combination without changing zero. It also includes Solar Failsafe and Shake Awake technology, along with 12 brightness settings, including 10 daylight settings and 2 night vision-compatible settings. Holosun states the optic offers up to 50,000 hours of battery life in dot-only mode, which helps support long-term reliability for shooters who want a practical rifle optic with fewer compromises.

For buyers looking for a premium open reflex rifle optic, Holosun HS510C Open Reflex Rifle Optic delivers a compelling mix of quick target acquisition, rugged construction, and modern red dot technology. The open reflex layout provides unlimited eye relief and a broad field of view, while the titanium hood and aluminum body support hard-use durability. If your goal is a rifle optic that balances speed, toughness, and feature-rich performance, Holosun HS510C Open Reflex Rifle Optic offers a refined solution that works across a wide range of long-gun builds and shooting roles.

Why LANCE Tactical?

Instructor-Tested Gear

Every product is vetted by firearms instructors and defense experts, not just reviews or repackaged hype.

Made in the USA

Proudly built and shipped from the U.S., no cheap knockoffs or overseas delays.


Built to Last, Not to Fail

Zero gimmicks. No off-brand batteries. Just rugged, field-ready gear made to perform under pressure.

Fit for Real Setups, No Guessing

From G19s with red dots to full-size rifles, we design and spec gear to actually fit your real-world loadouts.

Reviews

Got Questions? We’ve Got You.

Is your gear actually tested, or just resold?

Every product we carry is tested and used by real firearms instructors, if it doesn’t pass our standards in the field, it doesn’t make it into our store. We don’t resell hype gear or chase trends, we carry what works.

Do you keep inventory, or is this dropshipped?

We stock everything in-house at our U.S. warehouse. No fake stock levels, no overseas delays. What you see is what we physically have and ship, fast.

How fast is shipping?

Orders placed before 2pm ET typically ship the same day. You'll receive tracking within 24 hours, and shipping is free on U.S. orders over $50.

What’s your warranty or guarantee?

All LANCE Tactical products come with a 1-year warranty, and we actually stand behind it. If something isn’t right, contact us and we’ll make it right, fast.

Can I talk to someone if I need help?

Absolutely. We answer emails, calls, and messages, no bots or call centers. You’re talking to someone who knows the gear and can help you get exactly what you need.

Gear You Don’t Have To Second-Guess

4.9 Rating, 3,000+ Orders Secured

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Mark, TX

“Finally found a place that only sells what actually works. Everything I’ve ordered, from the safe to the cleaning kit, is solid, no-nonsense gear. Fast shipping, great support, and I know it’s all vetted by people who train with this stuff daily. I won’t shop anywhere else.”

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James, AZ

“Solid construction, no surprises. Fit my Glock 19 with red dot and light perfectly. Shipping was quick and the packaging was professional. Finally, gear that actually delivers. You can tell this was designed by people who actually use what they sell.”

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Stephanie, GA

“I’m new to firearms and wasn’t sure where to start. The kit I ordered came with everything I needed and nothing I didn’t. Loved the quality and how easy it was to set up. I’ll definitely be coming back when I build out the rest of my setup.”

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Derrick, TX

“Bought two safes for home and travel. Both are rugged, quick to access, and passed my tests with flying colors. This is the kind of company that earns repeat business. I’ve already recommended them to two friends at the range.”

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Chris, MT

“I’ve had enough junk gear in the past to know the difference. This stuff is built right. Customer service responded within an hour, rare these days. You can tell these guys actually care about their customers.”

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