Search  for anything...
Sig Sauer

Sig Sauer Romeo Zero 1x24mm SpectraCoat Lens HD Lens Ultra-Compact Micro Reflex Sight

  • Based on 3,364 reviews
Condition: New
Checking for the best price...
$159.99 Why this price?
Save $40.00 was $199.99

Buy Now, Pay Later

As low as $26.67 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 3 left in stock, order soon!
Fulfilled by Postgenix
Arrives Jul 18 – Jul 19
Order within 2 hours and 45 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Style: 3 MOA Red Dot


Features

  • SIG SAUER RED DOT SIGHT - The fastest, most accurate, ultra-compact micro reflex sight, the ROMEOZero 1x24mm pistol sight has been optimized for everyday concealed carry and pistols with slim slide profiles; Enables rapid target acquisition; Parallax free
  • RUGGED & DURABLE - This red dot sight features the SpectraCoat HD Polymer Lens with 10 times the impact resistance over traditional glass lenses; Rugged WeaponsGrade textured polymer body gives this pistol sight a great level of drop protection
  • HIGH PERFORMANCE - MOTAC (Motion Activated Illumination System) powers up when it senses motion and powers down when it does not; Highly efficient, point source LED emitter provides a crisp dot that is 8 times more efficient than conventional red dots
  • COMPATIBILITY - Direct mount to ROMEOZero; Shield RMS-c footprint; J-Point footprint; This handgun sight is NOT compatible with slides cut to accept a standard ROMEO1; Housing optimized for use with Polymer pistols, concealed-carry and slim slide profiles
  • SPECIFICATION - Magnification: 1x; Objective Lens Diameter: 24mm; Battery: (1) CR1632; Reticle: 3 MOA Red Dot; Overall Length: 1.6 in; Overall Width: 0.93 in; Height: 0.93 in; Weight: 0.4 oz; Illumination Settings: 8 Daytime; Run Time: 20000 hrs

Description

BORN IN EUROPE, PERFECTED IN AMERICA In 1853, Friedrich Peyer im Hof, Heinrich Moser and Conrad Neher began what they thought would become a successful wagon factory above the Rhine Falls in Switzerland. SIG SAUER today has a world-class guns knowledge base, unparalleled design expertise, and extensive manufacturing capacity, enabling the company to meet and exceed needs of gun enthusiasts. Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store ROMEOZero The fastest, most accurate, ultra-compact micro reflex sight – the ROMEOZero has been optimized for everyday concealed carry and pistols with slim slide profiles. The sight features a ruggedized, WeaponsGrade textured polymer body and the SpectraCoat HD Polymer lens system. The ROMEOZero enables rapid target acquisition in an everyday carry package at an iron sight price. ROMEOZero is Compatible With: SOR01300 (3 MOA) / SOR01600 (6 MOA) Highly efficient, ultra-wide broadband, anti-reflection lens coatings reduce surface reflections to extremely low levels across the entire visible spectrum providing superior light transmission. Optimized for use with polymer pistols. Lightweight, textured polymer. Activated through motion sensing technology, MOTAC immediately powers up illumination when it senses motion and powers down when it does not in order to extend battery life. Feels like a SIG because It is ONE

Brand: Sig Sauer


Color: Black


Style: 3 MOA Red Dot


Product Dimensions: 1.6"L x 0.93"W x 0.93"H


Sport: Airsoft, Hunting, Tactical & Military


Item Weight: 0.5 Ounces


Material: WeaponsGrade textured polymer


Magnification Maximum: 1.0


Objective Lens Diameter: 20 Millimeters


Magnification Minimum: 1 x


Magnification Maximum: 1.0


Objective Lens Diameter: 20 Millimeters


Magnification Minimum: 1 x


Compatible Devices: Handgun


Mounting Type: Picatinny Mount


Night vision: No


Field Of View: 24 Degrees


Reticle Type: 3 MOA Red Dot


Item Dimensions L x W x H: 1.6"L x 0.93"W x 0.93"H


Item Weight: 0.5 Ounces


Color: Black


Product Style: 3 MOA Red Dot


Material Type: WeaponsGrade textured polymer


Brand Name: Sig Sauer


Sport Type: Airsoft, Hunting, Tactical & Military


Model Name: SOR01300


Manufacturer: SIG SAUER


UPC: 798681618958


Global Trade Identification Number: 58


Model Number: SOR01300


Manufacturer Part Number: SOR01300


Unit Count: 1.0 Count


Warranty Description: 2 Year Manufacturer


Included Components: Product


Item Type Name: Holster


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 18 – Jul 19

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Perfect for Sheild Plus and P365!
Style: 3 MOA Red Dot
Awesome sight for my Shield Plus and P365. Its made of polymer and matches the stipiling on the P365. It comes with a metal cover or guard that gives you more durability and protection from a fall or everyday use. It's compact and fits subcompact pistols well and is ideal for concealed carry. Installation was easy for both pistols and I didn't have to modify or buy an adapter plate. It bolted right up and was easy to adjust. If you have a Sheild Plus or P365, this is the best sight for the money. ... show more
Reviewed in the United States on February 21, 2026 by AmazonUser13
    • Quality Sight
Style: 3 MOA Red Dot
I have been a Gunsmith for 44 years and have mounted more RMR type sights than I can remember. The Sig ROMEOzero was very straight forward in its mounting. It was mounted on a Glock 27, .40 S&W utilizing a dovetail mounting plate. The majority of these sights are metal but the ROMEOzero is a polymer housing. This particular mounting was for my personal EDC firearm and I can honestly say I have mounted more different brands than I can remember. I chose the Sig because I wanted a sight that was small but still presented an excellent sight picture. The instructions from Sig were well written and would serve a shooter who has never mounted this type of sight. Of note and great importance is the warning of not to over tighten he mounting screws because it could deform the polymer and cause the sight to malfunction. My first observations were the automatic waking of the sight with the slightest movement. Yes, this is going to cause the sight to be on with the daily movements but off whenever the firearm is still. The presentation of the red dot is very impressive when bringing the firearm up to the shooting position. I found that I needed to bring the intensity of the red dot down to mid level of brightness. Doing so gave excellent presentation in bright sunlight as well as total darkness. I urge the shooter to experiment with this to find what works best for them. Range time revealed the need for sight adjustment. Shooting at a 7 yard distance I fount he elevation to be perfect but I did need to adjust windage to the right. The adjustment screws are well defined with arrows indicating direction of travel. They are also pronounced with a solid felt click for each moment of travel. After adjustments over 50 rounds were fired with the sight holding perfectly. All screws were checked for problems and none found. I am also an NRA pistol instructor and Training Counselor and would urge anyone to consider this sight or one like it for defensive shooting. It gives the shooter faster sight acquisition and far better grouping than standard “iron sights”. Lastly I paid for this and have not been compensated in any way. Be SAFE…..Shoot WELL ... show more
Reviewed in the United States on November 30, 2023 by OklabyGodhoma
    • Spectacular!
Style: 3 MOA Red Dot
Sig Sauer Romeo Zero is working pretty awesome. Make sure you get a good mounting plate though. Cheap plates don’t mount level and there is too much play in the slot. Ordering a better quality plate.
Reviewed in the United States on May 17, 2026 by Vince Arcaro
    • Motion activated system explained
Style: 3 MOA Red Dot
I initially thought that the Motac system didn't work. 1. You have to turn the red dot on first. It will not turn on automatically from the 'full' off setting. 2. Turns off after 2 minutes of no motion. 3. Auto turn on is VERY sensitive to vibrations ! Just stepping harder while walking towards it, to check whether it turned off automatically, wakes it up... I had to actually sit by motionless to confirm the feature 😊 This means it will always be on while carrying or transporting. Hence I'm doubtful of the advertised battery life. That said, I'm happy with it for the price. The slim profile goes well with my Kimber 1911. If you need a plate, it has the same footprint as DeltaPoint and Shield. Searching for a Romeo Zero plate will yield almost no results. I reached the end of the internet, to find this out, so you don't have to 😊 ... show more
Reviewed in the United States on June 20, 2021 by adrian
    • Poor Design Features
Style: 6 MOA Red Dot
This isn't my first Sig red dot and I'm very happy with my other ones. However this one is giving me pause. It's design seems kind of clunky and cheap where it matters. It comes with 2 sets of screws, not sure why since the instructions doesn't say. Only which ones to use and they seem slightly too long. They don't seem to seat well but I'm hesitant to over tighten them. The instructions say to tighten to 9 inch lbs, but who had that tool laying around except a gunsmith. The red dot itself is in a plastic housing that slips into a metal housing for better protection. I'm ok with that, my issue is with the battery. it's loose at the bottom of the plastic housing and relies on the metal housing to hold it in. Not good. Seems to work, but cheaply done. My next issue is a big one to me. The placement of the button that turns it on and also adjusts the brightness. It's inside the housing next to the glass making it impossible for a normal man fingers to reach. As much as I'm tried, I cannot get my finger in far enough to press the button. So how the hell can I turn it on???? Let alone adjust the brightness? I read one review where someone mentioned having to carry a flathead screwdriver to get in there. That's ridiculous! I didn't think that could be true. It is !!! The other issue I have is how you adjust it up or down. My other Sig red dots have a slot that will allow you to use a dime if you're in the field and don't have a screwdriver handy. This one requires a very small allen wrench that is supplied. It's so small and thin, I would be afraid to take it to the range for fear of losing it. Then you're SOL if you need to adjust the sight again. I really had high hopes for this based on my other Sig red dots, but this is in a class by itself. The junk class. If you can't turn it on, why even have it. The down side is I don't know of another Sig red dot that will fit my P365 Macro. However, if I find one by another brand, this one is coming off in a heartbeat. Heck, I may as well take it off now if I can't turn it on. I started out with this at 3 stars but the more I wrote, I couldn't leave it there. This is far from Sig's best work and they should be ashamed to sell this. I'd rather pay more and actually have a functioning red dot that I can turn on and adjust. I can't in all honestly recommend this. ... show more
Reviewed in the United States on October 4, 2025 by Noncenx
    • P17 Install - perfect
Style: 3 MOA Red Dot
I mounted this on a Kel Tec P17 with a PLA printed mounting plate. Everything fits nicely inside the P17 slide width, no hangover. Pistol ran perfectly, the sight is very lightweight, especially when mounted without the optional steel protective case. Shake awake works perfectly, easily zeroed and brightness adjusted to present a smaller dot. I am using this for target shooting for the moment so the smallest/dimmest dot works very well. This is the second one I purchased, the other is on a PMR 30 also working well. I wouldn't hesitate to order again. ... show more
Reviewed in the United States on March 11, 2026 by Kevin L Hough
    • Effective, needs to be zeroed out of the box, view-port easily scratched, dubious motion-detection
Style: 3 MOA Red Dot
I put this on a S&W M&P Shield 9 EZ and have used it for 3 months now. It required a separate dove-tail plate adapter (not included here, in fact not even found on Amazon last time I checked). If you didn't know, you need to zero any sight you buy. Do not trust it to be perfectly zeroed from the factory. Mine was waaaay off out-of-box. The windage and elevation screws can be tight at times, so gently use the included hex tool to adjust. I was able to significantly scratch the inside where you look through, the view-port, within a couple days. I don't know from what, I don't blame the product - but just know that it's NOT scratch proof. Surprising the more exposed side, the side you don't look through, is unscratched after 3 months. The view-port also gets easily smudged with dust and oil. Cleaning it requires a soft-cloth and a thin tool in order to reach the edges with the cloth. The button to adjust brightness is NOT easily accessible. It is horribly deep near the actual view-port glass, and you have to press it pretty hard to cycle the brightness. I wish the button was on the sides or back. The red dot itself has perfect low to high brightness, no issue there. It claims to have "motion-detection" which I have observed is true, but sometimes it doesn't turn off as expected. I've put my firearm down on a table for a day, and came back to see that the red dot was still on. I've also observed that the dot does turn off after awhile. So it just seems to be finnicky. Installation was simple. Comes with various screws. Overall decent purchase, does its job, but pretty pricey when it has a handful of issues. 3 stars because of this. Would be 4 stars if it wasn't so expensive, because it's still very functional even with my issues. Edit after 6 months of use: The motion-detection feature seems to completely not work. Perhaps it's detecting the miniscule motions of the Earth, because it just doesn't seem to turn off when inactive. I've put it down in multiple different locations of my house, and the dot stays on several hours after. The battery has already died after 6 months, so I'll need to throw the irons on until I can pickup a new battery. Disappointing, as the motion-detection was the most important feature I wanted. ... show more
Reviewed in the United States on September 9, 2023 by Nick
    • Perfect!
Style: 3 MOA Red Dot
I don’t see what the issue is with this red dot. I just got it and it was easy to zero, fits perfect and looks good.
Reviewed in the United States on May 6, 2026 by Anina Greene

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...