The Trijicon RMR Type 2 vs RMR HD decision comes down to whether you want a compact, straightforward dot or are willing to pay more for a larger window, additional reticle choices, and easier battery access. The HD adds useful features, but the Type 2 does not become a poor choice simply because a newer model exists.
Our recommendation: choose the adjustable RMR Type 2 when you want the smaller housing and a simple dot at a lower advertised price. Choose the RMR HD when its top-loading battery, forward-looking light sensor, and selectable circle reticle solve something you actually dislike about your current optic.
For a fair comparison, we are using the red, adjustable RM06-C-700672 RMR Type 2 and the red, 3.25 MOA RMHD2-C-3200002 RMR HD. Automatic-only RMR models, green-dot variants, and packages with mounts need their own price and feature checks.
In This Guide
- RMR Type 2: A Smaller Housing and a Simple Dot
- RMR HD: What the Extra Features Actually Add
- Trijicon RMR Type 2 vs RMR HD: Side-by-Side
- Price Difference: What Are You Paying For?
- Which RMR Should You Buy?
- RMR Type 2 vs RMR HD FAQs
- Manufacturer References
RMR Type 2: A Smaller Housing and a Simple Dot
What the Adjustable RM06 Includes
The RM06 is a non-magnifying, open-emitter sight with a 3.25 MOA red dot. Its dot size is fixed: changing brightness does not turn it into the 1 MOA RM09 or the 6.5 MOA RM07. That simplicity appeals to buyers who already know they prefer a plain dot and do not want to spend time deciding between reticle patterns.
The adjustable version provides automatic brightness and eight manual settings, including two night-vision-compatible levels. You can choose automatic illumination or retain control of the brightness yourself. The distinction between adjustable and automatic-only models is important because both can appear in a search for an RMR Type 2.
The RM01 Type 2, for example, is an automatic LED model. It is not an inexpensive way to buy all the same controls as the RM06. Compare the complete model number rather than treating every optic with Type 2 in its name as identical.
Its Compact Size Is Still a Selling Point
Trijicon lists the RM06 body at 1.8 x 1.1 x 1.0 inches and 1.2 oz. The recognizable protective housing is forged aluminum, and the optic uses the established RMR footprint. Its smaller overall profile remains a reason to buy it, particularly if you prefer less bulk or are replacing an existing Type 2 in a setup whose fit you already know.
A smaller housing also means less viewing area than the HD offers. That is a physical trade-off, not proof that one optic will feel better to every buyer. If you can compare the windows in person, the way each housing frames your view may tell you more than an extra feature on a specification sheet.
Battery Access Is Its Main Ownership Compromise
The Type 2 takes a CR2032 battery beneath the optic. Battery replacement therefore requires removing the sight from its mounting position. Follow the appropriate manufacturer guidance for service and subsequent checks; the important buying distinction is that the battery cannot be reached from above.
Trijicon lists more than four years of continuous use at setting four of eight and 70 degrees Fahrenheit for this red RM06 model. That is a defined test condition, not a guarantee for every brightness setting, climate, or battery. A long runtime may mean fewer battery replacements, but you still need to remove the sight when the cell needs changing.
See our RMR Type 2 collection for the available dot sizes, colors, and packages. A mount bundled with one listing should not be assumed to come with another.
RMR HD: What the Extra Features Actually Add
A Larger Window Without Moving to a Different Footprint
The RMR HD keeps the RMR mounting footprint while enlarging the viewing window and controls. Its body measures 2.15 x 1.27 x 1.19 inches, and Trijicon lists its weight at 1.69 oz. It is therefore longer, wider, taller, and a little heavier than the RM06 Type 2 discussed above.
Those changes are easy to understand as purchase trade-offs. You gain a less confined viewing opening and more prominent buttons, while giving up some of the original model’s compactness. The shared footprint is useful, but it does not mean the outside dimensions are interchangeable.
Check clearance for the HD specifically if an existing slide, mounting plate, or holster is part of your decision. A compatibility statement for an original RMR is not automatically a statement about every larger optic that shares its mounting pattern.
Dot-Only or Circle-and-Dot Reticles
The RMHD2 has a 3.25 MOA center dot and a selectable 55 MOA segmented circle. You can choose the more detailed display or a simpler dot-only view. The HD’s 1 MOA version is a separate model; switching off the circle does not change the center dot’s size.
This flexibility is the clearest reason to favor the HD if you are undecided about reticle style. With the Type 2, you select a dot size when you buy the optic. With the HD, you still choose a center-dot size at purchase, but you also have a circle option within that optic.
More options are not inherently more useful. Someone who always selects dot-only mode may value the other HD improvements more than the reticle menu. Conversely, someone who specifically wants a circle-and-dot display cannot obtain that feature by choosing a different brightness setting on the RM06.
A Different Approach to Automatic Brightness
The HD adds a forward-looking light sensor that reads illumination toward the scene in front of the optic. It also provides configurable automatic-brightness behavior and dot-to-circle contrast. This is a meaningful difference from merely adding another manual setting.
There are nine brightness settings, including three night-vision settings and a super-bright setting. The HD and Type 2 use different brightness scales, so a higher setting number does not establish a brighter view. Your preference for manual or configurable automatic control is more useful than the setting count alone.
Top-Loading Battery Access
The HD also uses a CR2032, but its battery compartment is accessible from above. Routine battery replacement does not require removing the entire optic from its mount. For many buyers, this is the easiest HD benefit to justify because it affects maintenance regardless of which reticle they choose.
Trijicon’s specification for the RMHD2 lists more than three years of continuous use at brightness setting five in dot-only mode. That figure is not directly comparable with the Type 2’s differently defined setting-four rating. Reticle choice and operating conditions matter, so the fair conclusion is easier battery access, not a blanket claim that the HD outlasts the Type 2.
Browse the RMR HD collection to compare the 1 MOA and 3.25 MOA versions.
Trijicon RMR Type 2 vs RMR HD: Side-by-Side
| Feature | RMR Type 2 RM06 | RMR HD RMHD2 |
|---|---|---|
| Reticle | 3.25 MOA red dot | 3.25 MOA red dot with selectable 55 MOA circle |
| Emitter | Open | Open |
| Magnification | 1x | 1x |
| Battery | CR2032, beneath the optic | CR2032, top-loading |
| Brightness | Automatic and eight manual levels, including two NV levels | Automatic and nine levels, including three NV levels and one super-bright level |
| Body dimensions | 1.8 x 1.1 x 1.0 inches | 2.15 x 1.27 x 1.19 inches |
| Listed weight | 1.2 oz | 1.69 oz |
| Mounting footprint | RMR | RMR, with a larger outside housing |
| Main reason to choose it | Compact size and straightforward dot at a lower advertised price | Larger window, top battery access, and additional reticle and brightness options |
Price Difference: What Are You Paying For?
On September 18, 2026, our storefront advertised the black, red-dot RM06-C-700672 at $514.17 and the RMHD2-C-3200002 at $774.00. That is a $259.83 difference between the displayed item prices, before shipping. These are dated advertised prices, not a promise about a future cart total.
The RMR HD listing offers an email quote. Any quoted offer is separate from the public advertised price, so compare your actual offer with the current RM06 listing when you are ready to decide. Neither of these example listings includes a platform-specific mounting solution.
At the displayed prices, the HD upgrade needs to be worth more to you than simply owning the newer model. Its strongest case is the combination of top battery access, a larger window, and more control over illumination. If only one of those interests you, consider how often it will affect your ownership before paying the premium.
Which RMR Should You Buy?
Buy the Type 2 if you prefer a compact sight, want a single dot, and would rather keep the price difference. It is also the cleaner replacement choice when you want to retain the size and behavior of an existing adjustable RMR rather than change several things at once.
Buy the HD if easier battery service is important, you want a larger window, or you specifically want its circle reticle and forward-looking automatic-brightness system. Those are tangible improvements to compare, rather than a vague promise that a more expensive optic is better at everything.
If green illumination is essential, look at the green RM06 Type 2 as a separate option. Neither red HD model discussed here changes to green. If a sealed emitter is your priority instead, the Trijicon RCR collection is the more relevant next comparison: both the Type 2 and HD in this article remain open-emitter designs.
RMR Type 2 vs RMR HD FAQs
Yes, both use the RMR mounting footprint. The HD has a larger housing, so verify HD-specific plate, slide, and holster compatibility rather than assuming identical clearance.
No. The 1 MOA RMHD1 and 3.25 MOA RMHD2 are separate models. Their selectable circle can be turned off, but the center-dot size does not change.
No. The RMR HD and RMR Type 2 are both open-emitter optics. The RCR is Trijicon’s enclosed alternative in this group.
The RMR HD has top-loading CR2032 access. The Type 2 battery is underneath the optic, so accessing it requires removing the sight from its mount.
No. This comparison uses an adjustable RM06. Automatic LED Type 2 models such as the RM01 have different controls, so check the exact model number.
It can be if you value the larger window, top-loading battery, selectable circle reticle, or forward-looking brightness sensor. If you want a compact dot-only sight, the adjustable Type 2 can offer better value for your needs.
Manufacturer References
Specifications were checked against Trijicon’s RM06-C-700672 product page and RMHD2-C-3200002 product page. This is a specification-based buying comparison, not a claimed hands-on endurance test.