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Triton Nautilus 3 MOA | 407K, 507K Footprint | Modified RMSc, NO Rear Recoil Lugs, NOT RMS Compatible | Parallax-Free Micro Red Dot Sight (MRDS) Featuring Shake Awake and 50K Hour Battery Life

  • Based on 145 reviews
Condition: New
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Availability: In Stock.
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Arrives Wednesday, May 13
Order within 5 hours and 15 minutes
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Features

  • Footprint Options: Available in both RMR and 407K, 507K footprints for compatibility with a wide range of pistols. This listing is for the 407K, 507K K Series Modified RMSc footprint.
  • Shake Awake Technology: Automatically activates the optic when motion is detected, ensuring it's always ready when you are.
  • Extended Battery Life: 50,000-hour battery life off a single battery, for continuous operation in the field.
  • Enhanced Optics: Fully multi-coated lens system provides superior clarity, light transmission, and scratch resistance for a crisp, clear sight picture in all lighting conditions.
  • Top-Side Battery Change (407K, 507K Footprint Only): Minimizes zero shift during battery replacement.
  • Durable Construction: Machined from 6061-T6 aircraft aluminum and recoil tested on each Nautilus for extreme toughness and reliability.
  • Comprehensive Lifetime Warranty: Guaranteed performance and backed by a no-hassle replacement policy.
  • The following are compatible with this K Series Modified RMSc Footprint: Bul SAS II Ultralight/SW MP 5.7, SW Equalizer, Sig P322, 365X, 365XL, 365X-Macro, 365-380/Canik TP9 Elite SC, Mossberg 940 Tactical (Shotgun), Taurus TX22 Compact, Taurus GX4, GX4 XL T.O.R.O, Ruger Max-9, Shadow Systems CR920, PSA 5.7 Rock, PSA Micro Dagger, FN Reflex MRD.

Brand: Triton


Color: Black


Magnification Maximum: 1 x


Magnification Minimum: 1 x


Compatible Devices: Handgun, Shotgun


Night vision: No


Number of Packs: 1


Model Name: Nautilus


Number of Items: 1


Unit Count: 1.0 Count


Magnification Maximum: 1 x


Magnification Minimum: 1 x


Compatible Devices: Handgun, Shotgun


Night vision: No


Reticle Type: Dot


Color: Black


Brand Name: Triton


Model Name: Nautilus


UPC: 850055957435


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • My honest review
Works great has good brightness, but unfortunately when I was using it today after two magazines or 30 rounds, it’s shut off and wouldn’t turn on even if I pressed the button on that that’s when I switched to my iron sites and after a few rounds, started to work again, but kept on shutting off randomly packaging is really good comes. There’s a lot of good hardware seems really good for the price. It’s most likely I just got unlucky, ... show more
Reviewed in the United States on March 22, 2026 by Oscar

  • Good option for range toys
It's held zero on a TX22 with FRT for 3-4 thousand rounds so far. When i forget and leave the brightness turned all the way up I sometimes have to change the battery the next time I go to the range. The shake awake is probably just slightly too sensitive but for the money I won't complain. Specially holding zero on a pistol that can exceed 1600 rounds per minute. I just bought a cheap pack with a bunch of batteries so that also could play a role in batteries dying fast. Also nice that you can switch batteries in under a minute without removing the optic like on some other low cost options. I prefer 32 moa but It's got a nice size dot that's easy to put on target. It's not the best dot optic I own and I probably wouldn't trust my life with it but it's worth it for a range toy. So far no real problems. Will update if anything changes. ... show more
Reviewed in the United States on February 15, 2026 by Justin

  • Cheap in price, not in quality!
I've had this for a few months now and ran close to 400 rounds and it still holds zero. Easy to mount and easy to adjust. I recommend this sight for anyone looking to not break the bank. The dot gets plenty bright and has great visibility outdoors where I do all of my shooting. Buy one and give it a go, you won't be disappointed. ... show more
Reviewed in the United States on March 28, 2026 by carlos david

  • Pending
Not sure about this one. When it arrived I mounted it on a Taurus GX4 and headed to the range. Sight in was easy enough and everything worked as it should. Took it out today, along with a few others for a little practice. The dot was very dim, almost not visible but when I pressed the + it dimmed further and then turned off. I pressed both buttons but nothing happened. I figured it was the battery and though it shouldn't be dead, it happens. When I got home I replaced the battery and pressed the + button and nothing happened. But when I pushed the - button the sight came on but very dim. If I pressed the - button it got brighter. If I pressed the + it dimmed. The opposite of what should happen. Anyway, heading back to the range tomorrow, let's see what happens. ... show more
Reviewed in the United States on January 30, 2026 by migraman

  • I’m not sure what to think…..
Mounted good. Feels solid. 3rd time to the range and it’s dead. Maybe 300-400 rounds thru it. In the middle of shooting today the red dot would turn on and off with shots. Shake the gun and you could watch the dot flicker. DO NOT GET THIS DOT! Spend more money and get a better optic. Out of window to send back. If the seller wants to warranty this I will update accordingly. ******update****** No contact from seller…. Was going to take this off and got too looking it over. Couldn’t find anything lose. No noises when I shook it. Took the original battery out and put a new one in that I know is good. Took it to the range today and put 200 rounds thru it without a single complication. I just needed to put rounds thru it wasn’t really worried about accuracy lol. Maybe it was just the battery? This isn’t my main toy, just one I picked up to add into my rotation. It’s mounted to a CDS9. Mounts up just fine. Looks decent. I don’t think I’d trust my life on this optic but it may be good to break them in with. I’ll put some more rounds thru it and update. Another Update….. Made contact with seller. They shipped me out a new dot. Had it on the firearm for a couple months and put around 500 rounds or so thru it with no issues. Went to the range yesterday and 1/2 way thru it shut off. Messed with the battery cover and couldn’t get it to come back on. Got home and it was operating again. Not sure what’s going on but this is 2 with the same issues. ... show more
Reviewed in the United States on April 15, 2025 by Jim Stoops

  • Good inexpensive sight, iffy battery life though.
Not a bad little sight. Battery life could be better but fit perfectly on my Taurus GX4. Did need a little lock tight to stay firm. But once cured kept 0. I didn't see in the reviews the battery type it's CR1632 for those of you looking. (If it's in the manual I dunno as I didn't get a manual in my box) For the price and quality not bad at all. Shake to wake is a little iffy as I found battery drained quickly my guess is when I stored it being on it's side may have triggered the wake. Can't verify though. ... show more
Reviewed in the United States on October 1, 2025 by Nightfall

  • Love it. Worth every penny.
Excellent. Low profile, excellent quality and material. Packaging was excellent. Sighted in beautifully. Looks great installed. And that price, muah, love it. Will be purchasing another one in the future. I only wish the made it with a green dot. We will see how the battery life goes. But it’s been great so far! ... show more
Reviewed in the United States on February 18, 2026 by B.Miles

  • Seeing red
Great quality Great design Fast delivery
Reviewed in the United States on May 1, 2026 by Smaller than expected, but sharp and will serve it's purpose well.

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