Sig Sauer Romeo5 1x20mm Red Dot Sight, Black - R52001

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Sig Sauer Romeo5 1x20mm Red Dot Sight, Black - R52001

In stock

Regular Price: $ 219.99

Special Price $ 119.99

Quick Overview

free shipping Free Shipping applies to this item only and not the entire order.

SKU: 52574
UPC: 798681553396
MFR#: SOR52001
  • Model: ROMEO5
  • Magnification: 1x
  • Objective Diameter: 20mm
  • Eye Relief: Unlimited
  • Dot Size: 2 MOA Red Dot
  • Elevation Adjustment Range: +/- 40 MOA
  • Windage Adjustment Range: +/- 40 MOA
  • Illumination: 8 Daytime / 2NV
  • Battery Type: One (1) CR2032
  • Battery LIfe: 450 hours (on highest setting)
  • Weight: 5.10 ounces
  • Length: 2.47 inches
  • Width: 1.50 inches
  • Height: 1.52 inches

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ROMEO5 compact red dot sights provide civilians and armed professionals a robust 1x aiming solution for any situation. Ultra-low parallax so point-of-aim is point-of-impact and the red dot remains parallel to the bore of your firearm, no matter what your viewing angle is relative to the optical axis of the sight. Unlimited eye-relief allows you to acquire the aiming point and the target regardless of the position of your eye behind the sight. The readily available CR2032 battery is side-loading, allowing for quick battery replacement (featuring 50,000+ hours or more of life). Dependable waterproof (IPX-7 rated for complete water immersion up to 1 atmosphere) and fog-proof performance.


  • -2 MOA Red-Dot provides 10 illumination settings (8 daylight plus 2 NV) for visibility in all light conditions
  • -MOTAC™ (Motion Activated Illumination) powers up when it senses motion and powers down when it does not. Provides for optimum operational safety and enhanced 50,000+ hour battery life
  • -Integrated M1913 Picatinny interface provides industry-standard mounting options for a wide range of applications
  • -Dependable waterproof (IPX-7 rated for complete water immersion up to 1 meter) and fog-proof performance
  • -Includes a M1913 Picatinny low mount riser and a co-witness 1.41” riser mount


For the best selection of optics to fit your mission, shop Palmetto State Armory!

SKU: 52574
SKU 52574
Brand Sig Sauer
Daily Deal No
Daily Deal Expires No
Youtube Video WgXeIDXtM1E
Free Shipping? Yes
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 52574

Questions and Answers

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Browse 60 questions Browse 60 questions and 196 answers
Will this fit a P320 full size pistol? It only has a lower rail, not upper.
Melie on Jul 24, 2018
Sig Sauer Romeo5 1x20mm Red Dot Sight, Black - R52001
Sig Sauer Romeo5 1x20mm Red Dot Sight, Black - R52001
Sig Sauer Pistol P320 .40 Fullsize 320F-40-BSS
Sig Sauer Pistol P320 .40 Fullsize 320F-40-BSS
BEST ANSWER: You're kidding, right?
I want to mount one on a Mossberg 590A1.
is there a low mount option for this purpose? I don't want it the regular height. I need it down low on the receiver.
what mount options are there?
Brian P on Jul 27, 2018
BEST ANSWER: Am I the only one that reads the product descriptions??🙄👁🧠
Does it come with any lens caps?
DCMoore on Jul 21, 2018
BEST ANSWER: Yes it does. Inside the box comes a “Bikini style lens cover, Torx installation tool, lens cloth, CR2032 battery, Romeo 5, a low profile mount and an absolute co-witness riser”. I hope this helps with any other questions.
Do I need a riser with the Romeo 5 with a Ruger Carbine 9mm?
billy on Jul 28, 2018
BEST ANSWER: I have the 5 on my 590a1SPX and I use the low mount that is included in the box. Perfect fit and very low profile.
Does this, When mounted, also allow you to use your rear iron sights w/o Moving Red Dot out of the way. ...?!
Dandydon69 on Jul 21, 2018
BEST ANSWER: Yes, it comes with two different mounts and you can have co-witness with your regular sights without removing the Red Dot. Which is great just Incase your battery goes dead.
Hi: Will this red dot mount onto my P229?
alex p on Aug 23, 2018
BEST ANSWER: Yes, simply use Jimi Hendrix style and works fine.
I ordered the sig romeo 5,,the low mount was not in the box.the box was sealed.??
richard d on Jan 18, 2019
BEST ANSWER: Ditto - just a lens cleaning cloth and no low mount. How long until PSA and Sig figure out they have a problem. If they can't expedite it to me, it's going back. Doesn't say much for their QC.
Will the romeo5 mount on an ar with the carry handle?
Marv H on Jul 22, 2018
BEST ANSWER: You would need to purchase a rail that uses a single thumb screw that mounts on top of your carry handle. Then you can mount any scope or red dot type sight to the rail on top of your carry handle. Some carry handles can be removed so if yours is the removable type the red dot will mount right in place of the carry handle.
Is it night vision as well?
David L on Jul 23, 2018
BEST ANSWER: It is compatible with night vision if you have it, that's what the first two settings are for. You have to have night vision Togo behind the scope.
Can you mount this on a weaver style base on a Thompson Compass bolt action?
Patricia H on Sep 4, 2018
will this red dot be blocked by a perm mounted A-2 front sight ?
JAMES D. Q on Sep 19, 2018
BEST ANSWER: No, it shouldn’t be a problem. It will cowitness. The mounts are good quality, too. Similar to a Daniel defense aim point mount. The ones I bought are the CR2032 battery model. If you get the AAA model, it will also work.

Look at the manual online. I can’t link to it.

1.41”AbsoluteCo-Witness or 1.63”1/3 LowerCo-WitnessM1913TorxRiserMount
will this fit a 2003 crown vic police interceptor with a vw beetle rear ?
jimmydagent on Jan 30, 2019
BEST ANSWER: It will only fit American Muscle cars, primarily 2015 "50th Anniversary" GT Mustangs with the premium interior option.
Will this sight need to be zeroed again after each battery replacement?
Jefferson on Nov 27, 2018
BEST ANSWER: Hi Jeff I have owned this sight for awile and have not needed to replace the battery yet but have taken it out. This does not need to be "zeroed" after a battery change.
What foot print does it share for aftermarket mounts ?
Toney on Sep 11, 2018
BEST ANSWER: It shares the same footprint as Aimpoint T1/H1 optics. Plenty of aftermarket choices.
Will it work on an Anderson arms ar15?
Ron S on Aug 2, 2018
BEST ANSWER: Yes. It will work an any AR with railed upper receiver
Does it come with the battery?
Joe M on Jan 22, 2019
BEST ANSWER: Yes, it comes with a battery, 2 bases. One for a flat profile and a lifted profile, and a tool for the screws. It's a pretty good optic for the price.
Will this mount on the Palmetto State Freedom AR-15 rifle with the front iron sight on it without affecting the line of sight?
Frank P on Dec 9, 2018
BEST ANSWER: Yes, if your height is correct to "go witness", use the irons I do. I have one on my galil ace, and I utilize the open area under the sight for irons and the optic for quick acquisition. You cantose at this price.
With this scope work with (or co-witness with) the Magpul MBUS flip up sights?
Tim T on Feb 7, 2019
BEST ANSWER: Yes it will. On my 'Banshee' 9mm pistol, with the Romeo5 and included high mount, the Magpul sights co-witness in the center.
will this sight also mount on weaver base ?
john s on Jan 21, 2019
BEST ANSWER: I see no reason it will not. It’s the same design as most rails that mount any number of sights.
Should have asked an easier way. Will the romeo5 go on the AR-15 Freedom rifle without having to remove the front triangular iron sight. Will the romeo5 sit up high enough on the Freedom rifle top rail/MOE system?
Frank P on Dec 9, 2018
BEST ANSWER: Yup, the tall mount sits pretty high. Even clears the entire front sight hood on my Mp5.
what type of range would you have with a ar15 223?
Leroy S on Feb 9, 2019
BEST ANSWER: Since there is magnification, red dots in my opinion are meant for 50 yards or less but can be stretched farther depending on the size of your target. No zoom on this
Is the red dot etched in the glass, like on the vortex spitfire?
Andrew W on Jan 21, 2019
BEST ANSWER: - No, it’s not etched - just standard electro dot reflection. Great optic for the money, excellent pass thru iron sight mount...
Is this made by Holosun for Sig? Or just very similar?
Joe C on Jan 19, 2019
BEST ANSWER: Holosun makes them for Sig
Will this work on my LCP?
Mark J on Dec 11, 2018
BEST ANSWER: No. It’s a rifle optic, not pistol
does it fit aftermarket aimpoint style QD mounts ?
steve s on Nov 26, 2018
BEST ANSWER: Need to use a Midwest Industry Qd for Aim point micro this will work with romeo 5
Will this work on a KelTek Sub 2000 9mm carbine?
Alan P on Sep 19, 2018
BEST ANSWER: Yes it will
Will this work on the Kel-tec CMR30 as it comes with Magpul flip up sights. I assume from the responses below that it will co witness with the sights but just wanted to make sure before I purchased the Romeo5? Any help would be greatly appreciated. Thanks.
Fireman83 on Feb 9, 2019
BEST ANSWER: I really see no reason it would not as you have the Magpul flip ups that would possibly interfere. Flip them down. Have fun .like mine.
I have a Taurus 9mm will this accessory fit my model hardware ?
Harry W on Dec 25, 2018
BEST ANSWER: I'm assuming you are considering putting this on a handgun. I personally would not use this on a handgun. I think it is too large. You might want to look into smaller optics. If you want to use it on a rifle or AR platform pistol I recommend it highly. Great optic.
what does this unit fix to ? does this fix a glock 9mm ?, 1911 45 auto ?, 45 auto rifle ? 30-36 rifle ? winchester 22 rifle ? Thank you very much and happy holidays, to Palmetto State Armory. I appreciate your question and answer, section, herein.
walter h on Dec 9, 2018
BEST ANSWER: It attaches to a picatny rail...
Will this work for 450 bushmaster ar platform?
Vincent W on Nov 20, 2018
BEST ANSWER: If it has a piq rail it should. I have it on 2 different ARs, a 300 blkout and a 9mm pcc, and it works great on each.


4.7 / 5.0
664 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great optic. Easy to use and zero.
February 15, 2019
1 month ago
awesome little RDO. crystal clear dot and with the various adjustments you can find the perfect size retical for the available light your environment offers. the actual optic feels very high quality.. without giving too much added weight. stellar product.
Troubleshooter Build with Sig Sauer Optics Romeo5
February 15, 2019
2 months ago
Awesome little red dot!!!
Great bang for the buck red dot, maybe the best for the buck.
User submitted image
Added Feb 15, 2019
February 15, 2019
1 month ago
Outstanding lil red dot. The motion on feature is awesome! With the battery life and ease of use, no brainer. Buy it!
February 15, 2019
2 months ago
Great Price for a SIG Optic!
Thanks Palmetto State for another great optics deal! Also the free shipping! Red Dot works great on my S&W Victory that I use for Steel Plate and Bullseye Competitions at my Club. Increased my scores and rankings.
User submitted image
Added Feb 15, 2019
February 15, 2019
1 month ago
Perfect Red Dot
I love everything about this red dot system! Its small lightweight accurate and most importantly affordable! Its a great optic for anyone trying to modernize their build!
February 14, 2019
5 months ago
My second purchase of a Romeo 5- quality is excellent and I like its simplicity.
February 14, 2019
2 months ago
sig sauer romeo 5
look it up on youtube tell you everything you need to know love this thing going ti get another
February 14, 2019
2 weeks ago
Nice paperweight
Just opened the box and inserted the battery (correctly). Pressed the button to power it up... nothing! DOA. makes a wonderful pretty paperweight.
February 14, 2019
6 days ago
Great sight in it's price class
Comes with both the high and low profile bases/mounts for a picatinny rail. The high base is just right for the cheek weld on a standard flat top AR. Ive also run this sight with the low base on a Ruger 9mm PCC and it works well there too. With my aging eyes, most red-dot sights have quite a bit of flare, especially without my glasses but this Romeo is pretty sharp, even without the glasses. I like them enough that I ended up buying another, and thinking about a third!
February 14, 2019
5 months ago

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