Sig Romeo 1 Pro rear sight

  • 5 out of 5 stars

    by Aug 03, 2022

    Sig Romeo 1 Pro

    One of the best red dots money can buy. 6 MOA dot is crisp and clear with a perfect window size. Its easy to zero and stays zeroed. This red dot performs flawlessly and looks great on the P320. I couldn’t be happier I highly recommend it.

    Verified purchase: Yes | Condition: Pre-owned

  • Excellent Red Dot

    Had no idea a red dot would make such a radical difference in ability to aim, changing focus from front site to actual target. Highly recommend to any shooter. I'm very impressed with the quality of the Romeo1 Pro. I was a little worried about buying a used one, but a quick call to Sig Saur confirmed their "eternal" red dot guaranty travels with the site, regardless of owner, no registration or paper work needed. Installation was very easy, and controls for windage and elevation are easy to access and use. Controls for brightness also easy to access and use. Haven't had to change the battery (shouldn't need to for a couple of years) but cover is easy to access and its replacement shouldn't be a problem when needed. Haven't had it long enough to give a thorough review, but so far I'm REALLY IMPRESSED. Read full review

    Verified purchase: Yes | Condition: Pre-owned

  • Great Rock Solid Sight

    I own an M17 & M18, of course if you want to spend an extra $50-$100 on a Leupold you won’t buy a better sight than the Romeo 1Pro. The Romeo 1Pro comes with a steel shroud to protect the actual sight from damage is dropped. Has a 6 moa red dot vs I think a 3 moa on the Leupold. Remove the extractor rod, access the rear sight screws, remove sight, reinstall the extractor, mount the shroud and sight with two screws. The Romeo 1Pro has co-witness rear site groves cut into it, easily co-witness the front sight, dial your 1 moa adjustments to just above the front site and you should be on paper for your first sight to sight the site in. I have my two Romeo 1Pros sighted in at 35 yards. They make my Sigs into tack drivers with Hornady 115 XTPs. I am sold on anything Sig Sauer! Great Sites!!!!

    Verified purchase: Yes | Condition: Pre-owned

  • 4 out of 5 stars

    by doggys5Mar 30, 2020

    It was ok.

    It was great but unfortunately when it came time to sell no one wants to pay. Where I live everyone wants something for nothing. And I had to take it in to get sighted in which cost.

    Verified purchase: Yes | Condition: New

  • Great red dot sight.

    I really like this red dot sight. I wanted a 6moa and it works great. Easy to use on my Sig AXG pro. Easy to adjust and stays on zero. Great value.

    Verified purchase: Yes | Condition: New

  • The Sig Romeo 1 Pro is a relatively new pistol red dot by Sig Sauer that can be bought as a stand-alone optic or as a combo with a Sig P320. The Romeo1 Pro packs an impressive feature set at a reasonable price for a pistol red dot.

    Sig may have busted into the pistol red dot market and created one of the best pistol red dots on the market today.

    Reticle: 3 MOA or 6 MOA
    Weight: 1 oz
    Battery: CR1632
    Color: Black or FDE

    Sig Romeo 1 Pro rear sight

    Check out the Romeo 1 Pro in stock at these retailers:

    EuroOptic | GrabAGun | Primary Arms | PSA | Optics Planet

    First Impressions

    My first impressions of the Sig ROMEO 1 Pro are impressive.

    Impressive size, impressive quality, and impressive dot clarity.

    My only other extended use of a pistol-mounted red dot is a Vortex Venom on a Glock 17 MOS. Compared side by side, the Sig ROMEO 1 Pro the Vortex Venom is dwarfed in comparison.

    The field of view on the Sig ROMEO1 Pro is also massive. It is wide and tall enough that unless I intentionally focus on the aluminum housing or the steel protective shroud if installed, it blurs into my normal field of view.

    The fit and finish seem to be high quality, and the adjustment buttons are tactile and responsive.

    The red dot itself, being the 6MOA version, is large and in charge. It also is the clearest single dot I have ever seen on any optic. With my astigmatism, that is saying a whole lot.

    Materials

    So the Sig ROMEO 1 Pro is the second generation red dot from the ROMEO 1 line.

    Originally the Sig ROMEO 1 was made out of a lot of magnesium. This is an odd choice of materials, and you could say it didn’t work out well for SIG as soon after release their ROMEO1 red dots were having critical failures left and right.

    While one might expect to have a small red dot fail if dropped from a decent height while striking the ground, we are not talking about this kind of abuse. We’re talking about normal everyday bumps while in holsters, getting banged against car doors, and the like.

    This was obviously a huge problem, and could only be addressed by a redesign of materials.

    The engineers at Sig went back to the design process and substituted aircraft-grade aluminum housing that would take care of the normal bangs and bumps that were causing their previous units to fail.

    Taking it a step further, Sig also designed a steel shroud that can be installed, further protecting the optic and making it more rugged.

    To install the shroud, you will need to remove the Sig Romeo1 Pro from its host firearm and slide the steel shroud into place. After you have completed that, you will reattach the ROMEO 1 Pro plus the shroud back onto the host firearm.

    If I were to carry my Sig RXP XCompact for duty I would definitely opt to have the steel protective shroud installed. As it is, I carry the Sig RXP XCompact off duty and feel that because it’s concealed under at least two layers of garments, the steel shroud is not needed.

    The adjustment buttons are located on the left side of the red dot. They are stiff rubber and have arrows that indicate an increase or decrease in brightness.

    The glass is a molded aspheric lens with high-performance coatings to make the most of light transmission and have zero distortion. 

    Sig Romeo 1 Pro

    Reticle: 3 MOA or 6 MOA
    Weight: 1 oz
    Battery: CR1632
    Color: Black or FDE

    Sig Romeo 1 Pro rear sight

    Check out the Romeo 1 Pro in stock at these retailers:

    EuroOptic | GrabAGun | Primary Arms | PSA | Optics Planet

    Weight

    The advertised weight for the Sig ROMEO1 Pro is 1oz. This is not a great deal in the grand scheme of things, but as the saying goes; ounces equal pounds, and pounds equal pain.

    I personally think the advancement in aiming and ease of use when using a red dot such as the Sig ROMEO 1 Pro far outweighs the menial one-ounce addition in weight. 

    Reticle

    The reticle that Sig packs into the ROMEO 1 Pro is nothing short of amazing. 

    Sig Romeo 1 Pro rear sight

    I’m not sure what kind of witchcraft goes into modern red dots in general, but I have noticed the reticles in the Sig Romeo 1 Pro along with the Holosun 503G have seen a quantum leap in quality and clarity from the designs of the not so distant past.

    The larger 6 MOA reticle found on my ROMEO 1 PRO is probably the sharpest red dot reticle I have ever witnessed. There is no distortion or any artifacts that I can see when viewing the red dot.

    The larger red dot also aids in quicker target acquisition, and also greatly aids in quick follow-up shots.

    For a pistol dedicated dot, I feel that the larger red dot is well suited for this exact roll.

    Adjustment

    The Sig ROMEO1 Pro is built with 100 MOA overall elevation adjustment and 100 MOA overall windage adjustment.

    Sig Romeo 1 Pro rear sight

    Each of these can be accomplished with the provided tool that can be hung on your keychain or a small flat head screwdriver.

    The windage adjustment is found on the ejection port side of the sight and is clearly marked with the direction of travel. 

    The elevation adjustment is located on the top of the sight and is also clearly marked with the direction of travel.

    These interfaces provide a tactile and audible click when adjusted.

    This is what the modern shooter has come to expect from quality optics.

    Sig Romeo 1 Pro

    Reticle: 3 MOA or 6 MOA
    Weight: 1 oz
    Battery: CR1632
    Color: Black or FDE

    Sig Romeo 1 Pro rear sight

    Check out the Romeo 1 Pro in stock at these retailers:

    EuroOptic | GrabAGun | Primary Arms | PSA | Optics Planet

    Battery

    Sig opted to drop in a CR1632 battery to power the ROMEO1 Pro red dot. 

    The CR1632, while possibly not the most popular battery selection, is still common enough that you will find it used in a few other designs. 

    The CR1632 in the ROMEO 1 Pro will power the red dot for around 20,000 of use. 

    This claim is hard to substantiate simply because there are several variables that go into these claims.

    First, the brightness at which the dot is set will greatly affect the life of the battery.

    Second, Sig has included their MOTAC system into the ROMEO1 Pro. MOTAC stands for Motion Activated Illumination System that will power up the optic when it detects movement, and then power down the optic when it is sitting still, such as in a safe or on a bedside table through the night. 

    The MOTAC system effectively allows you to leave the ROMEO 1 Pro on indefinitely depending on your schedule of use.

    Even so, I personally schedule a battery change on all my optics on a yearly basis. In my opinion, there is no reason to possibly have a failure due to neglect on such a cheap and easily preventable part.   

    Durability

    As stated earlier, durability was a huge issue with the original ROMEO1. 

    When Sig went back to the drawing board, they knew exactly what they needed to work on.

    They came away with a refined product that utilizes much more robust metallurgy to protect the glass on the new Pro model.

    In addition to the ruggedized ROMEO 1 Pro itself, Sig also designed a steel shroud to further protect the glass on the red dot. 

    Few others have gone to that length to provide this level of protection. It bears a visual similarity to an EoTech’s protective housing. 

    Sight Picture

    The 30mm objective lens found on the Sig Sauer ROMEO1 Pro is quite large for this style of red dot. 30mm is the standard size of a dot that you would find on an AR. 

    The lens/sight picture is actually a little bit wider than the slide on the Sig P320 RXP XCompact itself. 

    This might sound odd, but when held in hand and then viewed downrange, it all melds into a seamless package.

    The molded aspheric lens has a slight tint to it, but nothing that would occlude your vision in any appreciable way. 

    I can confidently say this is my favorite pistol-mounted red dot sight picture that I have experience with so far. 

    Sig Romeo 1 Pro

    Reticle: 3 MOA or 6 MOA
    Weight: 1 oz
    Battery: CR1632
    Color: Black or FDE

    Sig Romeo 1 Pro rear sight

    Check out the Romeo 1 Pro in stock at these retailers:

    EuroOptic | GrabAGun | Primary Arms | PSA | Optics Planet

    Operation

    Operating the Sig ROMEO1 Pro is a simple affair. Once the red dot has its power source and is turned on, you then set the preferred brightness and that is it.

    The MOTAC system will take care of the rest for you. 

    Sig Romeo 1 Pro rear sight

    I have tried several times to pick the Sig P320 RXP XCompact up quick enough that I might be able to see the 6 MOA dot turn on, but I have been unsuccessful in doing so to date.

     There are 10 day time brightness options available to the user. To actuate between these settings, you will push the corresponding button that is clearly labeled with an up or down arrow to achieve the desired effect. 

    I have found that my daytime brightness setting corresponds well with the needed nighttime setting when using my Streamlight TLR-7a that is mounted below the barrel (keep an eye out for a review of the Streamlight TLR-7a in the future).

    As I currently do not have possession of night vision equipment, I have no way to test the night vision settings on the Sig ROMEO1 Pro. I do suspect however that it will perform as described from the factory.

    If you are mounting the Sig Sauer ROMEO 1 Pro red dot to a pistol that does not have a rear sight for whatever reason, the ROMEO 1 Pro has muted rear sight dots on the back face that should coincide with the front sight.

    In my application, the Sig P320 RXP XCompact comes standard with suppressor height night sights, and the mounting of any red dot to this host pistol does not remove said sights as is the case with other P320 offerings where the rear sight is part of the red dot cover plate.  

    Mounting

    Here’s a catch; the Sig ROMEO 1 Pro does not share a common footprint for mounting with many other pistol red dots. At the current time, the only other red dot that the ROMEO 1 Pro shares a footprint with is the DeltaPoint Pro. 

    For me this isn’t a big deal as the ROMEO 1 Pro was made to work in conjunction with the host firearm. 

    For my application, there is no need for a mounting plate, and the only reason I would have any material between the ROMEO 1 Pro and the slide is if I were to install the steel shroud. 

    Sig has recently released the ROMEO 2, and it reportedly will use the same footprint as the DeltaPoint and ROMEO 1 Pro.

    Final Thoughts

    After using the ROMEO1 Pro on my personal carry pistol for quite some time, I have to say I am impressed. 

    The beefed-up design, along with the large red dot helps me have confidence in the setup.

    I would recommend the Sig ROMEO 1 Pro to anyone who has a native host that would not have to be milled specifically for this red dot or one that could utilize a mounting plate to achieve the same.

    With all the different options available it would be hard for me to have a gun specifically milled to take this particular dot. 

    That being said, I do not plan on taking the ROMEO 1 Pro red dot off, unless I get a hold of a ROMEO2 of course. 

    Sig Romeo 1 Pro

    Reticle: 3 MOA or 6 MOA
    Weight: 1 oz
    Battery: CR1632
    Color: Black or FDE

    Sig Romeo 1 Pro rear sight

    Check out the Romeo 1 Pro in stock at these retailers:

    EuroOptic | GrabAGun | Primary Arms | PSA | Optics Planet

    What is the difference between Romeo 1 and Romeo 1 pro?

    The only major difference is the mounting pattern. The Rome1Pro was made specifically for the M17 pattern handguns to match military specifications. the battery lasts longer (2 Years or 20,000 hours) but one should change the battery annually or more if you use your gun regularly. It has a better dust cover.

    Are SIG Romeo sights good?

    The Romeo 5 gives you incredible features without the hefty price tag. It performs just as well as the best Vortex red dot sights in my arsenal. For around $150, the Romeo 5 offers impressive glass clarity, reliability, and durability that's worth every penny.

    What footprint is the SIG Romeo 1 pro?

    Sig Sauer Romeo1 1x30 Footprint.

    Does the SIG Romeo 1 Pro come with shroud?

    The Romeo1Pro includes a ruggedized protective shroud in the box for extreme durability.