+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Reviews & Ratings for SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight — 18 reviews

(18 reviews)
SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight
SIG SAUER Romeo 4XT-PRO 1x20mm Reflex Red Dot Sight
As Low As $579.99 Save Up to 24%
View Product
Write a Review
Compare (0)
1 item has been added
Add at least two items to compare
Most Helpful Positive Review Good Red Dot
Seems to be a solid optic and comes with a lot of features. The glass is some of the clearest I've seen which is expected from sig, the reticle options are extremely crisp with lots of brightness setting, and you do get a range of mounting options and lense covers. The only downsides I have found is...
Read More...
Most Helpful Negative Review Overpriced and unreliable
Bought a Romeo 4xt-pro directly from Sig. When i received it, it turned on and worked perfectly fine. I set my rifle down for a few minutes and when i picked it up the red dot was off. I tried everything to get it to work again, but it wouldnt turn on. Sigs customer service is great and i have ZERO ...
Read More...
Show
Sort by
Filter by

Great optic

by Dilly g, Verified Owner from OH, United States Written on March 3, 2026
Great optic. Great company. This is my 2nd one and ill continue to buy these for duty rated optics
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Bad reticle...

by Austin, Verified Owner from VA, United States Written on January 23, 2026
Ordered a factory demo unit, from what I can tell it's brand new and had never been opened. I fired it up and the reticle has vertical lines going through it and a ring around the perimeter. Optics planet, after many calls and waiting to have a returned call only to miss it over and over, is replacing it. Hopefully the new one is good to go, I really want to like this optic.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Sig Romeo 4XT-PRO

by Zac, Verified Owner from TN, United States Written on January 23, 2026
I am incredibly impressed with the 4XT-PRO. The reticle options, clarity of glass, love the MOTAC. I love that the reticles have 4 holds on 2 of the 4 options. Will run it with an Eotech G43 magnifier. It feels like a tank, very well made. With added bonus of a AAA battery, which I’ve already swapped for a lithium. Worth mentioning, I bought an Optics Planet like new demo model in FDE, and it looked absolutely brand new.
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No
Share

Best for the money

by Scram503, Verified Owner from OR, United States Written on December 28, 2025
Best red dot sight for the money in my opinion. I purchase mostly sig optics these days after running the other american made brands of the same price range.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Probably the best all around optic on the market at this time

by VB3, Verified Owner from UT, United States Written on September 4, 2025
The 4XT Pro is like a mix of Aimpoint M5S and T2. Dot is sharp, it comes ridicuiolsy well featured with everything you need from mounts, lens protectors, risers, and kill flashes. Looks great under night vision. Daytime brightness is blazing level.

Pound for pound, there is no better optic on the market.
Pros:
  • Price
  • Size
  • performance
  • Batter life
Cons:
  • None
Best Used for:
  • Tactcal
  • Target shooting
  • self / home defence
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Better Than Aimpoint

by Jason, Verified Owner from VA, United States Written on June 13, 2025
Proven durability track record, long battery life, 4 different reticles to choose from......
Awesome optic.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Awesome red dot!

by JJ, Verified Owner from OH, United States Written on March 17, 2025
Awesome red dot! One of the best Sig has to offer.
Best Used for:
  • Fast target acquisition
Would recommend: Yes
Was it helpful to you? Yes | No
Share

So far so good

by John S., Verified Owner from IN, United States Written on February 5, 2025
Glass clarity, battery life, and durability on first blush appear to be top notch. Haven’t had an opportunity to fully put this optic through its paces yet but expect it to hold up to hard use.
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No
Share

Great optic with multiple options

by Daniel, from NE, United States Written on January 31, 2025
The 4XT-PRO pretty much does as much as a red dot optic can do. I don't have night vision (yet) but this optic is reportedly great for that application. Great glass and easy to see dots with 4 different options. Easy to install battery that is common use. Zeroing is simple with easy to feel clicks. Sure, it's more expensive than a Romeo5 but it'll be the last red dot you need.
Pros:
  • clear glass
  • sharp red dot
  • Common use battery
Cons:
  • Expensive
Best Used for:
  • Personal & home defence
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Sig durable?

by Spacedcadet, from ID, United States Written on December 13, 2024
I bought a similar build a bit back and after getting everything running away finally squarely smashed the kit and kaboblle as viewed from the z. Still functioning beatifies even if I am going blind... Awesome.
Would recommend: Yes
0 of 3 found the following review helpful.
Was it helpful to you? Yes | No
Share
There are no reviews that match your criteria. Would you like to review this product?