The Trijicon RMR vs Holosun 507C decision is often framed as a premium optic versus a budget alternative. That misses the useful differences. An adjustable RMR Type 2 gives you a fixed dot in a compact, distinctive housing. The 507C X2 adds selectable reticles, a side battery tray, Solar Failsafe, and motion-based illumination management.
It is also important to name the versions. RMR Type 2 and RMR HD do not have the same battery location or reticle features. Likewise, the 507C X2 and newer X3 are not interchangeable labels. A good comparison starts with the models you are actually considering.
Our main examples are the red RM06-C-700672 RMR Type 2 and red HS507C-X2. We then explain where the current X3 options belong, without treating every 507C as an X2.
In This Guide
- Trijicon RMR Type 2: A Fixed Dot and Compact Profile
- Holosun 507C X2: Reticle Choice and Side Battery Access
- Trijicon RMR vs Holosun 507C: The Matched Comparison
- Where the Holosun 507C X3 Fits
- What Matters Beyond the Feature Count?
- Mounting Fit and the Price Difference
- Which One Fits Your Priorities?
- Frequently Asked Questions
Trijicon RMR Type 2: A Fixed Dot and Compact Profile
The RM06 Type 2 has a 3.25 MOA red dot and side-button brightness controls. It also supports automatic brightness. That makes it different from an automatic-only RMR model, even though both may appear under the broader Type 2 name in a search.
Its upper housing rises at either side of the lens, giving the RMR its recognizable profile. Trijicon describes the shape as directing impact forces away from the glass. The protective housing is a key design feature, although no optic is immune to damage.
The reticle is one fixed dot. There is no 32 MOA circle to switch on, and the center-dot size does not change through a menu. For a buyer who wants a straightforward view and does not plan to use multiple reticle patterns, that simplicity can be appealing.
The main ownership compromise is battery access. The CR2032 sits underneath the optic, so replacing it requires removing the sight. Trijicon lists more than four years of continuous operation for this red model at setting 4 of 8 and 70 degrees Fahrenheit. A long specified runtime may reduce how often you encounter that maintenance step, but it does not change the access method.
The RMR Type 2 collection includes other configurations, including a 3.25 MOA green adjustable-LED model. Reticle color and brightness behavior should be checked on the exact product rather than inferred from the family name.
Holosun 507C X2: Reticle Choice and Side Battery Access
The HS507C-X2 uses Holosun’s Multi-Reticle System. You can choose a 2 MOA dot, a 32 MOA circle, or a combined circle-and-dot presentation. That is a genuine flexibility difference from the fixed-dot RM06, especially if you are unsure which appearance you prefer.
Its viewing window measures 0.91 by 0.63 inch. The open-emitter design leaves the light path exposed behind the lens, just as the Type 2 does. The presence of environmental protection for the electronics does not make the optic an enclosed-emitter model.
A CR1632 sits in a side tray, allowing battery access without removing the optic. The smaller battery format differs from the RMR’s CR2032, but the more important convenience is where it can be reached. Holosun’s published runtime is up to 50,000 hours at setting 6; the reticle and brightness conditions should be considered rather than assuming equal runtime in every mode.
Solar Failsafe provides a backup power source under suitable light. It is not a charger that turns the replaceable CR1632 into a rechargeable battery. Shake Awake serves a separate purpose: it manages illumination during inactivity and wakes the optic when movement is detected. Neither feature means you should ignore battery condition.
The X2 also offers brightness controls and a lock function to help prevent unintended changes. These conveniences make it a strong option for buyers who want more configurable behavior at a lower advertised price, rather than a simple copy of the RMR.
The green 507C X2 is a separate color model. Our Holosun 507C collection includes both older and newer configurations, so check the generation as well as the color.
Trijicon RMR vs Holosun 507C: The Matched Comparison
| Feature | RMR Type 2 RM06 | HS507C-X2 |
|---|---|---|
| Reticle | Fixed 3.25 MOA red dot | Selectable 2 MOA dot, 32 MOA circle, or combined reticle |
| Battery | CR2032 | CR1632 |
| Battery access | Underneath the optic | Side tray |
| Solar backup | No | Solar Failsafe |
| Motion activation | No Shake Awake function | Shake Awake |
| Emitter | Open | Open |
| Mounting pattern | RMR | RMR |
| Advertised item price, September 18, 2026 | $514.17 | $232.99 |
Where the Holosun 507C X3 Fits
The 507C X3 is a separate current option, not another name for the X2. Holosun lists a 0.91-by-0.67-inch window for the X3, compared with 0.91 by 0.63 inch for the X2. The change is in the published window height; it should not be described as a dramatic increase in every dimension.
The X3 retains the 2 MOA dot and 32 MOA circle concept, an RMR-pattern interface, and side access to a CR1632 battery. Our collection includes red, green, and gold X3 listings. Those are separate color configurations, not a color-switching mode inside one optic.
Choose the exact X3 when that is the model you want, and compare its current price and specifications directly. Do not use the X2 price in this table as an X3 price, or assume that every detail from one color’s specification applies to every other version.
What Matters Beyond the Feature Count?
The Holosun offers more reticle choices. That matters if you want them, but a buyer who prefers one uncomplicated dot may leave the additional patterns unused. The RMR’s fixed reticle can therefore be a deliberate preference rather than merely a lack of features.
Battery access is less subjective. The 507C X2 allows replacement through the side, while the Type 2 requires removal to reach its battery. If avoiding that removal is a priority, the Holosun has a straightforward convenience advantage in this comparison.
Do not compare the battery-life numbers as if the manufacturers had used an identical brightness scale. A setting number is local to the optic, and illumination demand changes with settings and reticle selection. The practical choice is a maintenance arrangement you are comfortable with, not a promise that either device can be forgotten indefinitely.
The same caution applies to solar backup. It is a useful supplementary feature under suitable conditions, not a guarantee of unlimited operation in any lighting. The 507C X2 still has a conventional replaceable battery for a reason.
Mounting Fit and the Price Difference
Both compared optics use the RMR mounting pattern, but their complete bodies and supplied hardware are not identical. Confirm the exact optic with the plate manufacturer, and check holster clearance separately. A common footprint is not a universal compatibility certificate.
On September 18, 2026, our public advertised item prices were $514.17 for the red RM06 Type 2 and $232.99 for the red 507C X2, before shipping. The $281.18 difference is substantial. Check the product pages for current prices and purchase options.
The RMR premium makes sense when you specifically prefer its housing, compact profile, and fixed-dot design. It should not be justified with an unsupported claim that the alternative cannot withstand ordinary use. The Holosun’s lower price and maintenance conveniences are real reasons to consider it on its own terms.
Which One Fits Your Priorities?
Choose the adjustable RMR Type 2 if its physical design and simple fixed dot are what you want, and you are comfortable with bottom battery access. Choose the 507C X2 if selectable reticles, side battery access, and the lower advertised price matter most.
Consider the 507C X3 options as their own comparison, not as a silent substitute for the X2. Whichever direction you choose, confirm generation, reticle color, exact controls, and fit before purchasing.
Frequently Asked Questions
The 507C X2 and X3 models discussed here use the RMR pattern. Exact plate, hardware, body-clearance, and holster compatibility still need confirmation.
Yes. Its CR1632 battery is accessed through a side tray. The RMR Type 2’s CR2032 is underneath the optic.
No. It is a supplementary power feature under suitable light, not a charger for the replaceable CR1632 cell.
The RM06 compared here has one fixed 3.25 MOA dot. The 507C X2 can display a 2 MOA dot, a 32 MOA circle, or both.
No. They are separate versions. One documented difference is the X3’s taller published window. Compare the exact generation and color model rather than combining their specifications.
No. The RMR Type 2 and the compared 507C versions are open-emitter designs. Solar backup and water-resistant electronics do not change that construction.
Manufacturer references: RMR Type 2 RM06, Holosun 507C X2, and Holosun 507C X3 red.