Holosun 407COMP: The Complete Brand Guide
Published on: April 29, 2026
Reading time: 8–10 minutes
If you’re looking for a competition red dot that’s fast, clean, and won’t empty your wallet, the Holosun 407COMP deserves a serious look. It debuted at SHOT Show 2026 with one clear goal: give competition shooters the large window they need at a price that makes sense. This guide covers specs, comparisons, mounting, and whether it’s the right pick for your setup.
Highlights
- The Holosun 407COMP features an oversized 1.1 x 0.87-inch competition window with a single, bold 6 MOA dot.
- It shares the same housing, weight, and footprint as the 507COMP but costs less.
- Available in three reticle colors: Red, Gold, and Green.
- Shake Awake with Memory Mode and a side-loading battery delivers up to 50,000 hours of runtime.
- It fits any RMR-compatible slide and is legal for USPSA Carry Optics, Production Optics, Limited Optics, and Open divisions.
What Is the Holosun 407COMP?
Where It Fits in the Holosun Lineup
Holosun’s naming is worth a quick decode. The “407” means dot-only. “COMP” means competition-series housing. “HS” marks standard red LED variants; “HE” marks the Elite-series LED used in the green and gold versions. The suffix—RD6, GR6, or GD6—tells you the dot color.
The Holosun 407COMP sits between the compact 407C and the multi-reticle 507COMP. Same massive competition window as the 507COMP—just no reticle system, and a lower price to match.
It’s built for shooters who run dot-only and don’t want to pay for CRS features they’ll never touch between stages.
Key Features at a Glance
- 6 MOA dot—bold, easy to track through recoil, fast to pick up from the holster
- 1.1 x 0.87-inch competition window—same oversized glass as the 507COMP
- Three color variants—Red (HS407COMP-RD6), Green (HE407COMP-GR6), Gold (HE407COMP-GD6)
- RMR footprint—fits any RMR-compatible slide or adapter plate
- Price is around $330 (Red/Gold), $342 (Green). However, if you buy from us, you’ll get the Red at $279.99 and the Green at $289.99.
Full Specs Breakdown
| Spec | Detail |
|---|---|
| Reticle | 6 MOA dot |
| Window Size | 1.1 x 0.87 in |
| Housing | Hard-anodized 7075-T6 aluminum |
| Weight | 1.7 oz |
| IP Rating | IP67 (submersion up to 1 m / 30 min) |
| Vibration Rating | 5000G |
| Battery | CR1632, side-loading tray |
| Battery Life | Up to 50,000 hrs at setting 6 |
| Brightness Settings | 12 total (8 daylight, NV-compatible) |
| Adjustment | 1 MOA/click, ±30 MOA travel |
| Footprint | RMR |
| Eye Relief | Unlimited, parallax-free |
| Features | Shake Awake, Memory Mode, Lockout Mode |
What These Specs Actually Mean
IP67, defined by the IEC 60529 standard, means full dust protection and the ability to handle submersion up to one meter deep for 30 minutes—more than enough for rain, sweat, and range conditions. The 5000G vibration rating isn’t just a pistol spec either; it covers the recoil impulse of PCCs, semi-auto shotguns, and AR platforms.
The 50,000-hour battery life at setting 6 is a near-lifetime figure for most shooters. Shake Awake extends that further by keeping the dot off while the gun sits idle and powering it on the instant you move—so you’re never burning battery in the holster.
The ±30 MOA adjustment range with 1 MOA per click gives you precise zeroing. At 25 yards, one click shifts your point of impact by about a quarter inch—plenty of room to dial in a clean, competition-ready zero.
The 6 MOA Dot: Why It’s a Competition Advantage
Understanding Dot Size
MOA stands for Minute of Angle—an angular unit where 1 MOA equals roughly 1 inch at 100 yards. A 6 MOA dot covers about 1.5 inches at 25 yards. That’s intentional in competition: a bigger dot is faster to locate under recoil, especially during rapid multi-target strings.
6 MOA vs. 2 MOA: Which One’s Right for You?
Go with 6 MOA if:
- You shoot dynamic stages in USPSA, IDPA, or Steel Challenge
- You’re newer to running a pistol optic
- Speed matters more than edge precision at 50+ yards
Go with 2 MOA if:
- You shoot at longer distances where edge-of-A-zone accuracy matters
- You’re comfortable with a smaller dot and don’t want to change your technique
One note on astigmatism: dot size response is highly individual. A larger dot—4 MOA or above—can actually lessen blurring for some astigmatic eyes, not worsen it. Others see the opposite. Test both before committing.
Red vs. Green vs. Gold: Which Color to Pick?
Red is the most common and universally capable choice. Works well across all lighting conditions and is the safest default.
Human eyes have peak photopic sensitivity at around 555nm—squarely in the green spectrum—which is why green LEDs appear brighter in high-glare daylight at the same output. It’s slightly pricier due to the more complex LED manufacturing. It’s a solid choice for outdoor competitions with intense sun.
Gold is a niche pick, but a thoughtful one. Some anecdotes suggest amber/gold reticles are least affected by mild astigmatism, followed by green, then red. It also reads differently against various target colors—useful when backgrounds are complex.
For most shooters, red is the safe starting point. Only go green if you regularly compete in harsh daylight.
The Competition Window: Why Size Changes Everything
The Holosun 407COMP has a 1.1 x 0.87-inch window. Compare that to the standard 407C’s 0.91 x 0.63-inch window, and the difference is immediately noticeable at a range.
When a pistol fires, the slide cycles and the optic moves with it. A smaller window means your dot can disappear out of frame during recoil—costing you fractions of a second hunting for it again. A bigger window keeps the dot in view longer, so your follow-up shot happens faster. In competition, where split times run in the tenths of a second, that window size directly affects your score.
Who Benefits Most
The large window is a genuine upgrade for:
- Shooters running Carry Optics, Production Optics, Limited Optics, or Open in USPSA or IDPA
- Steel Challenge competitors where pure speed on close steel is everything
- Shooters transitioning from iron sights who are still building the reflex to find the dot fast
It’s less ideal for concealed carry—the wider COMP housing profile prints more against clothing. If you’re after a carry optic, the Holosun 407K or EPS Carry are the better fits. For a full look at the Holosun lineup, check out our Holosun red dot review guide.
Holosun 407COMP vs. 507COMP: The Real Difference
This is the comparison most buyers land on—and the answer is simpler than you might expect.
These two optics are built on the exact same platform. Both have the identical 1.1 x 0.87-inch window, 7075-T6 housing, IP67 rating, 5000G vibration rating, 1.7 oz weight, CR1632 side-loading battery, Shake Awake with Memory Mode, and ±30 MOA adjustment range. If you run dot-only, they’re functionally the same optic at different price points.
Where They Differ
The 507COMP has the Competition Reticle System (CRS)—a 2 MOA center dot with selectable ring options at 8, 20, and 32 MOA in multiple combinations. The 407COMP has a single fixed 6 MOA dot. No toggles, no rings, no choices to make mid-match.
There’s also a battery angle worth noting: when the 507COMP runs its larger circle reticles, more LEDs are active, which draws more power. The 407COMP’s 50,000-hour rating stays consistent because there’s only one thing to illuminate.
The 507COMP typically runs around $370. The 407COMP is around $280–$342. That’s a real $30–$90 savings for functionally the same setup if you were going dot-only anyway.
The Bottom Line
Choose the 407COMP if you want a clean, fast dot-only setup and want to keep the savings. Choose the 507COMP if you want the option to try different reticle configurations by stage.
Holosun 407COMP vs. Other Competition Optics
Trijicon SRO
The Trijicon SRO always comes up in this conversation. Here’s the honest picture.
The SRO’s round window measures 25mm x 22.5mm—roughly 0.98 x 0.89 inches. The 407COMP’s rectangular 1.1 x 0.87-inch window works out to about 10% more glass surface area. In practice, both windows are competitive; the main difference is shape, not a dramatic size gap.
The SRO comes in 1.0, 2.5, and 5.0 MOA dot sizes. The 407COMP is fixed at 6 MOA. The SRO lacks Shake Awake—Trijicon rates it at a 3-year battery life at setting 4 of 8, which is functional but doesn’t come close to 50,000 hours.
Trijicon positions the SRO specifically for competition, not duty use—it’s not their most rugged optic. The 407COMP gets you within 10% of the SRO’s window at 35–45% less cost, with better power management built in.
Leupold DeltaPoint Pro
The DeltaPoint Pro has a strong competition reputation, but the specs tell a different story than many shooters expect.
The DPP’s window measures 25.7mm x 17.5mm—about 1.01 x 0.69 inches. That’s actually smaller than the 407COMP’s window by roughly 37% in surface area. The DPP looks large on a slide because of its wide housing frame, but the glass aperture is more compact than it appears.
Battery life is stark: the DPP runs approximately 1,200–1,600 hours at mid-brightness versus 50,000 hours for the 407COMP. The DPP does have Leupold’s Motion Sensor Technology—their equivalent of Shake Awake—so it’s not without power management. But the underlying battery capacity is in a different league. Add the DPP’s proprietary mounting footprint versus the universal RMR standard, and the 407COMP wins on window size, battery life, and mounting flexibility at a comparable price.
Mounting the Holosun 407COMP
The RMR Footprint Explained
RMR stands for Ruggedized Miniature Reflex—the Trijicon-originated footprint that became the pistol optics standard. The Holosun 407COMP uses this footprint, which means it’s compatible with any RMR-cut slide, either directly or via an adapter plate.
Common pistols that accept RMR-footprint optics include the Glock MOS (via included adapter), CZ Shadow 2 OR, S&W M&P 2.0 CORE/Performance Center, Springfield Armory Echelon, Staccato models with factory optic cut, and Walther PDP (with mounting plate). Some accept the footprint directly; others require a plate—always verify your specific model before ordering.
When You Need an Adapter Plate
If your slide uses a different factory cut, you’ll need an adapter plate. Trusted options include CHPWS, Forward Controls Design, and C&H Precision. Always use blue Loctite (medium strength) on your screws and torque to your pistol or plate manufacturer’s spec—typically in the 10–17 in-lbs range, but always defer to the specific manufacturer’s guidance.
Zeroing Your 407COMP
It’s important to zero your red dot.
Most competition shooters zero at 25 yards for USPSA and IDPA, and 15 yards for Steel Challenge. Use the 1 MOA per click adjustments to walk your zero—fire a group, note where it lands, count clicks to center, and confirm. Run at least 50 rounds before your first match. The side-loading battery tray means routine battery swaps never disturb your zero.
Shake Awake and Battery Management
Shake Awake is a motion sensor built into the optic. The dot powers down when the gun sits still, then turns on the instant you move. Memory Mode brings it back at the exact brightness setting you left it—no fumbling with buttons between stages.
At a multi-stage match, the optic goes into standby while you wait, then lights up the moment you step toward the start box. You never have to think about it.
Battery Swaps Without Losing Zero
The side-loading tray lets you swap the CR1632 battery without removing the optic from your slide. Zero stays put. Replace on a fixed schedule—annually or before every two to three major matches—rather than waiting for a low-battery indicator. Stick with name-brand cells like Panasonic or Energizer for consistent voltage output.
Real-World Use Cases
Competition: USPSA, IDPA, Steel Challenge
The Holosun 407COMP is legal and well-suited for these USPSA divisions:
- Carry Optics (CO)—one of the fastest-growing USPSA divisions; striker or DA/SA pistols with a slide-mounted red dot
- Production Optics (PO)—similar framework to CO, with its own equipment parameters
- Limited Optics—specifically created to accommodate single-action pistols like 2011s that aren’t permitted in Carry Optics
- Open—the unrestricted division where large-window optics are standard
In IDPA, the 407COMP is legal in optics-eligible divisions. Always check the current IDPA rulebook for your specific division’s requirements.
For Steel Challenge, this is arguably where the 407COMP shines brightest. The sport is almost entirely about how fast you can find the dot and break the shot. A large window paired with a 6 MOA dot is the ideal combination for fast close-range steel acquisition.
Beyond Competition
The 407COMP also earns its place as a home defense pistol. Its 5000G vibration rating handles PCCs, semi-auto shotguns, and AR platforms without zero shift. That said, it’s not the right pick for concealed carry—the wide COMP housing prints against clothing. For EDC, the 407K or EPS Carry is the better fit.
Is the Holosun 407COMP Worth It?
Who Should Buy It
The Holosun 407COMP is the right call if:
- You compete in USPSA, IDPA, or Steel Challenge and want a large-window optic
- You’re upgrading from a smaller optic like the 407C and want more real estate in the window
- You’ve already decided on dot-only and don’t need the 507COMP’s CRS
- You want competition-grade performance without paying SRO or 507COMP prices
Who Should Look Elsewhere
It’s not the right pick if:
- You want to switch reticle configurations by stage—go 507COMP
- You’re building a concealed carry setup—go 407K or EPS Carry
- You need a 2 MOA dot for precision stages beyond 25 yards—the 507COMP’s CRS dot-only mode gives you exactly that
- Budget is your main driver, and you don’t need the competition window—the 407C X2 is a capable lower-cost option
The Value Case
At around $280–$342, the Holosun 407COMP delivers a true competition-window optic at 35–45% less than the SRO’s $499–$599 price range. No direct competitor currently pairs the RMR footprint, 1.1 x 0.87-inch window, Shake Awake, side-loading battery, and 50,000-hour runtime at this price point.
Conclusion
The Holosun 407COMP is a purpose-built competition optic that doesn’t try to be everything—it does what competition shooters actually need. Big window, bold dot, near-lifetime battery, zero-preserving swaps, and universal RMR mounting. For dot-only shooters, it’s the same hardware as the 507COMP at a meaningfully lower price.
If you’re stepping up from a smaller optic or just want a competition window without paying for CRS features you’ll never use, the 407COMP lands in a hard-to-argue-with spot in today’s market.
If you’re looking for a Holosun 407COMP, Gold Trigger currently sells the Red and Green options. You can also call us at 713-485-5773 for a faster transaction.
Disclaimer: The Holosun 407COMP and all firearm optics featured on this site are intended for use on legally owned firearms by trained, responsible individuals. Gold Trigger sells optics and accessories only in compliance with applicable federal, state, and local laws. It is the buyer’s sole responsibility to verify that any product purchased is legal to own and use in their jurisdiction. Firearm optics should be installed by a qualified gunsmith or competent individual following all manufacturer instructions and torque specifications. Gold Trigger is not responsible for improper installation, misuse, or use of products in violation of applicable laws. If you are unsure about the legality of any product in your area, please consult a licensed attorney or your local law enforcement agency before purchasing.
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