Hey Freedom Gorillas! 🦍 Today we’re comparing the Holosun 507COMP to the brand new 407COMP so you can clearly see the similarities and differences before you buy. Both of these optics are large window, RMR footprint style red dots built with competition shooters in mind. The 507COMP has already proven itself as a big seller in the competition world, and now Holosun has released the 407COMP for shooters who wanted something a little simpler.
Let’s walk through it.
The Similarities
Before we talk about differences, it’s important to understand just how similar these optics really are. Structurally, they are built on the exact same platform. Both use the RMR footprint, so they mount to the same slides and adapter plates. Both have the same large 1.1" x 0.87" window that competition shooters love for fast transitions and easier target tracking.
They share the same 7075-T6 aluminum housing, the same 1.7 oz weight, the same IP67 rating, and the same ±30 MOA travel range with 1 MOA per click adjustments. They both use a CR1632 battery housed in a side tray, and they both feature Holosun’s Shake Awake technology. In other words, from a durability, mounting, and window-size standpoint, you are getting the exact same optic body.
If you’re buying either one, you’re getting the same competition-ready foundation.
The Real Difference: The Reticle
The biggest difference between the two comes down to the reticle system.
This follows the same pattern we’ve seen in Holosun’s other lines, like the 407K vs 507K or the 407C vs 507C. The 507 models always offer a more advanced multi-reticle system, while the 407 models keep things simple. The COMP series is no different.
The 507COMP features Holosun’s Competition Reticle System (CRS). This gives you a 2 MOA dot along with 8 MOA, 20 MOA, and 32 MOA circle options, plus various dot-and-ring combinations. That means you can tailor the reticle to your shooting style or even adjust it depending on the stage. Some shooters prefer a clean 2 MOA dot for precision. Others like a large outer ring for extremely fast target acquisition. The CRS system gives you flexibility to experiment and fine-tune your setup.
If you want maximum reticle versatility and like having options, the 507COMP is built for that.
The 407COMP, on the other hand, keeps it straightforward with a fixed 6 MOA dot. There are no ring options and no toggling between reticle combinations. It’s clean, bold, and fast. A 6 MOA dot is easy to pick up under stress, easy to track in recoil, and uncluttered in the window. Many shooters run dot-only anyway, so Holosun essentially built the 407COMP for those who didn’t need the extra reticle configurations.
In simple terms, the 507COMP is the more advanced version, and the 407COMP is the streamlined version.
Battery Life Considerations
Battery life is another area worth discussing.
Both optics advertise up to 50,000 hours on setting 6. However, there is an important detail to understand. The 407COMP achieves that 50,000-hour runtime using its 6 MOA dot. Since that’s the only reticle option, that’s your consistent performance expectation.
The 507COMP also delivers 50,000 hours on setting 6 when running dot-only. But if you activate any of the outer ring options in the CRS system, battery life decreases. More illuminated elements mean more power consumption.
So if you plan to run dot-only all the time, battery life between the two is essentially the same. But if you regularly use the ring or dot-and-ring combinations on the 507COMP, you can expect shorter runtime compared to the 407COMP.
If extended battery life with a simple dot is your priority, the 407COMP may be the better fit.
Price Difference
Finally, let’s talk price.
The 407COMP starts at $280, while the 507COMP starts at $370. That’s roughly a $90 difference.
What you’re paying for with the 507COMP is the Competition Reticle System and the added flexibility that comes with it. If you know you want the multiple reticle options and the ability to fine-tune your sight picture, that extra cost makes sense.
If you prefer a straightforward 6 MOA dot and want to save money without sacrificing the large window or durability, the 407COMP delivers the same competition-ready platform at a lower entry price.
Final Thoughts
At the end of the day, both optics share the same housing, window size, footprint, durability, and core performance. The real decision comes down to whether you value reticle flexibility or simplicity.
| Feature | Holosun 507COMP | Holosun 407COMP |
|---|---|---|
| Window Size | 1.1" x 0.87" | 1.1" x 0.87" |
| Footprint | RMR | RMR |
| Housing | 7075-T6 Aluminum | 7075-T6 Aluminum |
| Shake Awake | Yes | Yes |
| Battery Type | CR1632 | CR1632 |
| IP Rating | IP67 | IP67 |
| Weight | 1.7 oz | 1.7 oz |
| Adjustment Click | 1 MOA | 1 MOA |
| Travel Range | ±30 MOA | ±30 MOA |
| Reticle Type | CRS (Multi-Reticle System) | 6 MOA Dot |
| Dot Size | 2 MOA | 6 MOA |
| Circle Options | 8 / 20 / 32 MOA + dot/ring combos | None |
| Battery Life Notes | Up to 50,000 hrs (Dot Only) — lower when using ring settings | Up to 50,000 hrs (6 MOA Dot) |
| Solar Panel | No | No |
| Starting Price | ~$370 | ~$280 |
If you want options, stage tuning capability, and a multi-reticle system, the 507COMP is for you. If you want a bold 6 MOA dot in the same large competition window at a lower price point, the 407COMP makes a lot of sense.
Neither optic is better than the other. They’re simply designed for different types of shooters.
If you need help deciding which one fits your setup, reach out to us and we’ll get you squared away. 🦍
