Triton Nautilus Micro Red Dot Sight
These are just some of the most common handguns that feature RMSc and K-Series. We have a more comprehensive list at the bottom of the page. RMSc will fit onto K-Series footprint but not the other way around.
A crisp 3 MOA aiming point with 10 brightness settings provides fast acquisition from low light to bright daylight
Built for EDC
CNC-machined 6061-T6 aluminum construction, IP64 protection, and recoil-tested durability are built for daily use
Shake Awake
Motion activation wakes the optic when moved and sleeps when idle for up to 50,000 hours of battery life
RMSc/K-Series
Available in footprint options designed for popular micro-compact handgun mounting systems
Replace the battery from the top of the optic without removing the Nautilus or losing your zero
Lifetime Warranty
Every Nautilus is backed by Triton’s lifetime warranty with no registration required
Type B OR/OSR / Type D OR/OSR
PD10
BP9CC OR
Mete MC9 / Mete SF / Mete SFT / Mete SFT Pro / Mete SFX
Reflex MRD
43X MOS / 48 MOS
Witness 2311
Masada Slim
R7 Mako OR / R7 Mako TFS / R7 Mako Carbon Compact / CDS9 / KDS9c
Beretta Tomcat RDO
MC2sc Optic Ready
5.7 Rock Optics Ready / Dagger Micro
STK100
MAX-9 / 5.7 Optics Ready
SAR9 Subcompact Gen2 / SAR9 Compact Gen3 / SAR9 Gen3 / SAR9 Sport Gen3 / SAR9 SOCOM
CPX-1 RDR / CPX-2 RDR / CPX-3 RDR / CPX-4 RDR / DVG-1 RDR
CR920 Combat / Elite /CR920P
P322 / Comp / P365-380 / P365 Optic Ready / P365X / P365XL / P365-XMACRO / Comp / P365-AXG Legion
M&P 22 Magnum Performance Center / M&P Shield M2.0 OR / M&P Shield Plus OR / Equalizer
Hellcat OSP / Hellcat RDP / Hellcat Pro / XD-S Mod.2 OSP
STR-9MC
TX 22 Compact / GX4 TORO / GX4XL / GX4 Carry TORO / Defender 856 TORO / 327 TORO / 605 TORO / Judge TORO / Magnum Judge TORO
Carry Double Stack / Duty Double Stack / Night Stalker / Double Stack SF
Reflex MRD / Reflex XL MRD
43X MOS-K
CC9 Optics Ready / CC9 Optics Equipped
Masada Slim / Masada Slim Elite / Masada Slim Commander Elite
R7 Mako Tactical
Dagger Micro / Dagger Micro C-1 / Dagger Micro X-1
MAX-9 Optics Ready
CR920 / CR920 Elite / CR920P / CR920X / CR920XP
P365-380 Optics Ready / P365 Optics Ready / P365X / P365XL / P365-XMACRO / P365-XMACRO Comp / P365 FUSE / P365 AXG Legion
M&P Shield X / Performance Center Shield X Carry Comp / CSX E-Series 3.1" / CSX E-Series 3.6"
TX22 Compact
The most important thing to check is your handgun's optic footprint, not simply whether the pistol is "optic ready." The Nautilus is available in both RMSc and K-Series 407K/507K-compatible configurations, allowing you to choose the version that matches your slide or mounting system. Always verify your specific handgun's optic cut and mounting requirements before ordering.
Not exactly. The Holosun K footprint is closely related to RMSc, but differences in mounting geometry and recoil-lug configuration mean they should not automatically be treated as interchangeable. That's why Triton offers the Nautilus in separate RMSc and K-Series configurations, so you can select the version intended for your mounting pattern.
Not necessarily. If you select a Nautilus footprint that directly matches your handgun's optic cut, an additional adapter may not be required. If your slide and optic use different mounting patterns, a compatible adapter plate may still be necessary. Direct mounting also helps keep the optic lower and the overall setup more streamlined.
A 3 MOA dot provides an excellent balance between speed and precision. Smaller dots obscure less of the target and can provide a finer aiming reference, while larger dots can be easier to pick up quickly. Vortex similarly positions 3 MOA as a versatile choice for shooters wanting greater precision without giving up fast acquisition. The Nautilus uses a crisp 3 MOA red dot intended to work well from everyday carry to range use.
The Nautilus is rated for up to 50,000 hours of battery life, placing it in the same general longevity class as many popular modern micro red dots. For comparison, Holosun lists up to 50,000 hours for the HS407K-X2, while current competitors vary substantially depending on model and brightness settings.
No. The Nautilus uses a top-loading battery system, allowing you to replace the battery while leaving the optic mounted. This is a major convenience because removing an optic for every battery replacement can require checking or restoring zero afterward. Top- or side-access batteries have become a common selling feature on competing optics from Burris, Holosun, SIG Sauer, and Trijicon for exactly this reason.
Yes. Shake Awake automatically activates the Nautilus when motion is detected and allows it to sleep while sitting idle, helping conserve battery power without requiring you to manually turn the optic on every time you use it. Similar motion-activation technology is a major feature on competing Holosun, SIG Sauer, and Leupold optics.
Yes. The Nautilus provides 10 brightness settings, allowing you to tune the 3 MOA dot from lower-light environments through bright daylight. Adjustable brightness is an important feature because a dot that is too bright can appear bloomed or oversized, while one that is too dim may become difficult to see against a bright background.
The Nautilus RMSc incorporates a rear backup sight directly into the optic housing, providing an additional aiming reference without requiring a separate rear-sight attachment. Whether you achieve a full co-witness with your existing front sight will still depend on your pistol's slide cut and sight height. Low deck height and iron-sight compatibility are also major design considerations on competing carry optics such as SIG Sauer's ROMEO-X Compact.
The Nautilus housing is CNC-machined from 6061-T6 aluminum, carries an IP64 rating, uses multi-coated glass with hydrophobic and anti-reflective coatings, and Triton states that production batches undergo recoil-simulation testing. It is designed around everyday carry and range use rather than being a fragile range-only optic.
