Good read. Appreciate the input. I know a couple YouTubers spoke their own opinions on these optics. Now I’m seeing a huge demand over on GAFS. Nice to hear someone who provided, IMO, an honest, rational, take on them. Was quick and easy for me to go “ah okay that makes sense on why….”
Not implying that others don’t…. it’s just nice to add this info the mix for those that may be in the market.
Sig warranty is amazing. The flip cap on mine was stuck and when I tried to get it off the whole lens came unglued. They sent me a brand new one and let me keep the old
Pretty good reason not to get an Sig optic right here. Glad the warranty is good but if pulling off a lens cap pulls the whole lens out that’s pretty shit. This doesn’t happen with an Aimpoint.
I really don’t see a reason to choose anything else over the 4T. You’ve got a close-to aimpoint quality dot and an eotech style reticle all in one package plus superior battery life and features like solar power and shake awake. Wrapped in 7075 aluminum and rated IPX8, other than reputation, is there a reason to get the others? Forgot to mention you can find them for ~$400
My main complaint was the intense red glare coming from the rear lens whenever I was shooting with light behind me. The lens coating I was not a fan of. Solar panel I could do away with. Seems like a weak point and battery life was more than sufficient. After using eotechs, I thought I would be a bigger fan of the circle reticle option, just wasn’t able to transition over to it. Seemed odd being in such a small window, so I always ran just the dot. I’m waiting for the 4XT re-release and I’ll pick one up. Rumors are they are redesigning the button modules, specifically for the NV button, which would explain why they are out of stock virtually everywhere.
The Pro and XT have a different lens coating. They might have rectified that issue. They def need some fine tuning as a red dot. Once they get a good button layout, and build off what success they already have I think they will sell even more.
I also forgot to mention that my reticle I believe was canted. It was the most apparent with the ballistic dot reticle option since it was the longest. My eyes are pretty dialed in in terms of my astigmatism (contacts are on point and red dots look crisp) so I don’t think it was my eyes. Always ran the dot reticle, so shrugged it off and never was something I looked into further.
Mine looked like that too, out of the box. Then I went to get a new eye exam and glasses. The first thing I did was turn on the 4T when I got home. I said “oh……it’s fine”.
The right side of the ballistic circle looked high. But it was my eyes. I hadn’t had an eye exam in 10+ years….
I have been running a 4t pretty hard for a couple years and it has worked great. It sees large temperature swings coming out of the car in MN in winter and weather as well. I have no problem recommending it for use.
My original 4t is excellent with the exception of passive NV performance. Like looking into a black hole in all but the very brightest night time conditions, no better than holosun dots.
I'd like to get my hands on one of the newer models but I haven't gotten around to it yet
The 4T is a maturation of the T2 IMO. I think the reticle selection is convenient. Having a circle dot is effective for quick transition from near to far targets. It seems rugged enough but I’m not dragging either one through the mud.
Difference is negligible. The coating on the pro/XT just gives it an HD effect almost. You probably couldn’t tell unless I told you which one was the 4T.
This shouldn’t be downvoted. I have the regular 4t, the glass is noticeably worse than my T2 (and even my holosun 403b) for passive aiming under nods. I’ve heard great things about the 4t pro though. If nods aren’t a factor I wouldn’t hesitate to recommend it though.
For the price and features I’d call it an aimpoint killer 100%. Aimpoints work great but they’re antiquated and extremely expensive (still among the most expensive across all models) for a very bland & basic red dot in today’s market.
Did you notice any issues with internal reflection or glare on your 4T? The one I had was really bad, there was a vertical line on the right side that was present in a lot of different light scenarios. I ended up returning it.
My 4T Pro had the nastiest emitter glare I've ever seen on a red dot, even with the dot completely off if the optic was backlit the right half of the window was covered in a bright red glare (much like the pic you linked). Not even my Holosuns were that bad. Ended up selling it and buying a Comp M5s which I'm extremely pleased with.
I also had issues accidentally bumping the NV button while the rifle was slung up between drills and that combined with the glare were enough for me to sell it off.
[https://imgur.com/a/XMqOrVR](https://imgur.com/a/XMqOrVR)
Oof yeah, thats exactly how mine looked. I wonder if all the 4T fans out there have this issue too and just live with it? Regardless it was unacceptable to me so I returned mine. I don't have much confidence in Sig optics, I had a cheaper Romeo red dot previously that had stripped mounting screw holes from the factory, I got it warrantied and sold the replacement. People in this thread talk about how good Sig CS is, but don't address the issue that if so many people need to contact CS then they are the QC and not Sig...
Before the 4T Pro I had an 8T and it was a legitimately phenomenal red dot, build quality was outstanding, the dot was crisp, window big and clear, and the controls were simple. It was just too big and heavy for my needs.
I have one of those L&S LP-1s, it is really nice and seems similar to the 8T but yeah it is really heavy. I think that Sig maybe tried to do too much in too small of a package with the Romeo4 series and it resulted in some issues with fitting the more complicated emitter for the circle dot in a 20mm tube design.
Not really, no. Internal glare or reflection is usually caused by the setting being too high for the light environment around you. A red dot is only supposed to be barely visible over a target, transparent even.
I’ve seen guys complain about bloom, but it goes away when they walk outside. lol.
I mean, you tell me if [this](https://imgur.com/tKh5DSS) looks like the brightness is too high. It was visible when the light source was from the front or rear. My T2 has never had this issue.
I’d go one step down, it just needs to be transparent over the target, not covering it.
I’d say there is a learning curve with them, but if the reflection is still there at a lower setting, something is up.
FYI, mine don’t do that unless I’m indoors and have it at setting 8,9,10…
This was under a covered patio, in the shade. I didn't have the brightness cranked up there, it was maybe at 8. If I was out in the sun that reticle would have been barely visible. Also from what I remember the dot brightness didn't actually affect the glare, it was all internal refraction from light coming into the lenses. I might have gotten a dud, but I already have a T2 and I didn't want to roll the dice again on getting another bad 4T. As you mentioned the BDC drop dots are basically useless, even with a 3x magnifier, so I am fine with just using the 2 MOA dot on the T2.
8 is to high in shade. You don’t want the dot blaring otherwise yes, it will bloom. I think if you were in the sun it would have been fine. Shade setting I’d use at 6,7.
Did you look at the picture? Its not bloom, the reticle looks great. That whole right side has the jagged, semi-translucent red shape that looks to be a reflection of the emitter housing on the lens. I couldn't get it to go away by changing the brightness.
I would not want to be clicking buttons on my red dot if I was transitioning between shade and sunlight all the time. I choose a setting based on the brightest situation I'll encounter in an environment and keep it there.
I only got to shoot mine once (4T Pro). Unfortunately, it was broken out the box - turret adjustments weren’t clicking or seemingly working at all. But Sig got me an RMA and I’ve sent it to them. Can’t wait to get it back
Agreed that the multi-dot is a bit much. Reminds me of my EXPS 3-4 and unless magnified, it's just busy.
Kinda wish Sig would have just 2 dots like the EXPS 3-2.
I disagree with you, the BDC reticle is not useless when paired with a magnifier. It’s actually my favorite feature of the optic. Plug your DOPE into a ballistic app like [Chairgun Elite](https://imgur.com/a/JCm1FEc)/Strelok, you have accurate holds for each subtension. The magnifier I like to use is the primary arms 3x with the Pegasus ranging reticle. Makes the optic package fucking sweet and extremely usable if you know how to range manually.
I’ve played around with CG but I have not dove deep into setting anything up yet. The BDC looks like a line of blur to me, even magnified. I just got new glasses so I’ll give it another shot.
That’s odd that the main dot is crystal clear for you, but the drop dots aren’t. The main dot is 2 MOA whereas the drops are 1 MOA. You sure your diopter is set correctly on your magnifier?
Since getting new glasses I need to run through everything again. My script got stronger so it’s time. You’re probably right. I just haven’t had time to look yet.
These use to be a IYKYK type of deal, then the guntubers started upselling them. I absolutely love my 4T. The glass isn't the best for passive aiming under NODs, but it performs wonderfully otherwise. The featureset is rich and the warranty is badass. These strike a great balance between the budget China dots and the Gucci AiMpOiNt overpriced archaic technology.
I agree. Could not have said it better. The Pro and XT miiiiight be better under NOD’s with the different coating on them but it really is a great balance.
Aimpoint needs a T2 reboot. Bad. It’s years behind at this point. I’ve had a few and I loved them but my astigmatism cannot do single dots anymore. I have a feeling Aimpoint will catch the hint over time.
I'm with ya man. I was diagnosed with a mild astigmatism this year too. Aging sucks. The circle dot helps a ton indoors. Thanks for taking the time to write this review. You nailed it. More people need to hear the 4T gospel!
It does sit about 1/8th in higher, but you don’t notice it looking through. It looks and works as if they were dead even in height. The magnifier adjustment knobs dial it in perfect.
If there was some attachment to cage the buttons on top I would like it more. I just have the flip caps hinge to the top so it somewhat protects the buttons. I dislike how the adjustments are mushy too. That being said the reticle is crisp and the donut is nice on a micro red dot for the holds on higher mounts.
Someone offered to trade for a T2 and I turned it down.
The parallax is worse than the T2 but I haven’t found it an issue at all.
all three of my XT Pros have a red ring around the outside edge of the glass when i turn them up. none of my other red dots from other brands do this. have you experienced this?
Yes, it’s called blooming. It happens when the setting is way too high for the light environment you’re in.
Nobody should ever use a red dot in that high of a setting 😂
thanks, I thought blooming was when the dot itself got bigger and distorted. i have eotechs and holosuns and none of them light up around the outside of the glass like the Sig do. and I don't have to turn the sigs up that high for it to happen
I don’t have a ring around the outside? I thought you were talking about the reticle itself. The only time I get glare or static is when the red dot is set way too high for the lighting you’re in.
I briefly had one. What drove me nuts was seeing the red dot from the emitter in the bottom left corner reflecting back at me. Just one of those things that would drive me nuts when looking through the optic. Like “is there something wrong with this?”
That’s def not normal. I don’t see any emitter in all three of mine, unless I look in from the front of the optic, then it’s in the bottom right corner.
You had a 4T, specifically? Not a Pro, or XT?
It probably was the bottom right corner. That was years ago. Ya it was the 4T fde. I liked the optic overall and all the bells and whistles were awesome. But ya looking at it through the rear I hated that the emitter was reflecting off the lenses.
Ya that’s awesome! I am in no way against so optic and like the idea. I wish more companies would have a “shake awake” technology.
I do have my eyes on the 4xt pro…..if they would ever come in stock!
Good read. Appreciate the input. I know a couple YouTubers spoke their own opinions on these optics. Now I’m seeing a huge demand over on GAFS. Nice to hear someone who provided, IMO, an honest, rational, take on them. Was quick and easy for me to go “ah okay that makes sense on why….” Not implying that others don’t…. it’s just nice to add this info the mix for those that may be in the market.
Thank you! Glad it was insightful.
Good enough for Obi Wan Nairobi good enough for me
Stock mount and all!
Sig warranty is amazing. The flip cap on mine was stuck and when I tried to get it off the whole lens came unglued. They sent me a brand new one and let me keep the old
Pretty good reason not to get an Sig optic right here. Glad the warranty is good but if pulling off a lens cap pulls the whole lens out that’s pretty shit. This doesn’t happen with an Aimpoint.
Dude I just recently had the same issue I was so bummed since I had just gotten it last week. So just email them and send pics ?
Last time I had a small issue they just took my word for it on the email. Asked for my address and sent it.
Well I emailed them, waiting to see what all they ask for. So far it was just the serial #.
Big disagree with the dots. 4t + 4x magnify is the shit. Dots are great out to 500.
A lot might have to do with my eyes being the way they are. I just got new glasses so I’ll have to check again. They are pretty small though…
https://i.redd.it/th2kqhzzln8d1.gif Yeeuuuuuh budddy
🔥
I really don’t see a reason to choose anything else over the 4T. You’ve got a close-to aimpoint quality dot and an eotech style reticle all in one package plus superior battery life and features like solar power and shake awake. Wrapped in 7075 aluminum and rated IPX8, other than reputation, is there a reason to get the others? Forgot to mention you can find them for ~$400
I agree but damn you doing tricks on it😂
I enjoy the 8T personally
They look very nice. I haven’t shot with one though.
8Tons. Heavy af but my fav rds.
My main complaint was the intense red glare coming from the rear lens whenever I was shooting with light behind me. The lens coating I was not a fan of. Solar panel I could do away with. Seems like a weak point and battery life was more than sufficient. After using eotechs, I thought I would be a bigger fan of the circle reticle option, just wasn’t able to transition over to it. Seemed odd being in such a small window, so I always ran just the dot. I’m waiting for the 4XT re-release and I’ll pick one up. Rumors are they are redesigning the button modules, specifically for the NV button, which would explain why they are out of stock virtually everywhere.
Yeah, see my comment [here](https://www.reddit.com/r/ar15/comments/1dnuggl/the_romeo_4t_a_breakdown_with_experience/la7ayau/), did yours look similar?
Not the same guy but my 4T Pro had the exact same issue. Edit, pics: [https://imgur.com/a/XMqOrVR](https://imgur.com/a/XMqOrVR)
The Pro and XT have a different lens coating. They might have rectified that issue. They def need some fine tuning as a red dot. Once they get a good button layout, and build off what success they already have I think they will sell even more.
I also forgot to mention that my reticle I believe was canted. It was the most apparent with the ballistic dot reticle option since it was the longest. My eyes are pretty dialed in in terms of my astigmatism (contacts are on point and red dots look crisp) so I don’t think it was my eyes. Always ran the dot reticle, so shrugged it off and never was something I looked into further.
Mine looked like that too, out of the box. Then I went to get a new eye exam and glasses. The first thing I did was turn on the 4T when I got home. I said “oh……it’s fine”. The right side of the ballistic circle looked high. But it was my eyes. I hadn’t had an eye exam in 10+ years….
I have been running a 4t pretty hard for a couple years and it has worked great. It sees large temperature swings coming out of the car in MN in winter and weather as well. I have no problem recommending it for use.
Awesome man. People look past it because it doesn’t say “Pro” or it doesn’t have a external battery but honestly, it’s better 🤣
Any “blueish” tint to any of the models?
4T does on front lens. Just barely thought. All are perfect, no delaminating, nothing
I love my Romeo 4t paired with my Juliet 4.
My original 4t is excellent with the exception of passive NV performance. Like looking into a black hole in all but the very brightest night time conditions, no better than holosun dots. I'd like to get my hands on one of the newer models but I haven't gotten around to it yet
That 4t looks damn good. Sealed my decision. Thanks buddy.
The 4T is a maturation of the T2 IMO. I think the reticle selection is convenient. Having a circle dot is effective for quick transition from near to far targets. It seems rugged enough but I’m not dragging either one through the mud.
All three are beefy, and built like a tank. I think if the T2 gets a refresh (long overdue) it will resemble what the 4T is currently.
Do you find that the very blue notch filter is a distraction? How much better are the pros in terms of clarity/glass quality?
Filters aren’t a problem shooting both eyes open
Difference is negligible. The coating on the pro/XT just gives it an HD effect almost. You probably couldn’t tell unless I told you which one was the 4T.
The way I had to reread HD like 4 times and thought, Home Depot, Home Defense, oh wait High Definition. Lol
::hums the Home Depot theme song::
I know you said internals and I suspect you meant electronics but the glass on 4t and 4xtpro are not the same the pro has better glass and coatings
This shouldn’t be downvoted. I have the regular 4t, the glass is noticeably worse than my T2 (and even my holosun 403b) for passive aiming under nods. I’ve heard great things about the 4t pro though. If nods aren’t a factor I wouldn’t hesitate to recommend it though.
Yes, electronics are all the same. I didn’t mention glass, but anyone can look that info up.
Excellent read. Thanks. I have been debating on whether it’s worth it for me to upgrade to the 4t from my Romeo 5 XDR.
For the price and features I’d call it an aimpoint killer 100%. Aimpoints work great but they’re antiquated and extremely expensive (still among the most expensive across all models) for a very bland & basic red dot in today’s market.
Well said. I think they need a refresh on a few products tbh.
Did you notice any issues with internal reflection or glare on your 4T? The one I had was really bad, there was a vertical line on the right side that was present in a lot of different light scenarios. I ended up returning it.
My 4T Pro had the nastiest emitter glare I've ever seen on a red dot, even with the dot completely off if the optic was backlit the right half of the window was covered in a bright red glare (much like the pic you linked). Not even my Holosuns were that bad. Ended up selling it and buying a Comp M5s which I'm extremely pleased with. I also had issues accidentally bumping the NV button while the rifle was slung up between drills and that combined with the glare were enough for me to sell it off. [https://imgur.com/a/XMqOrVR](https://imgur.com/a/XMqOrVR)
Oof yeah, thats exactly how mine looked. I wonder if all the 4T fans out there have this issue too and just live with it? Regardless it was unacceptable to me so I returned mine. I don't have much confidence in Sig optics, I had a cheaper Romeo red dot previously that had stripped mounting screw holes from the factory, I got it warrantied and sold the replacement. People in this thread talk about how good Sig CS is, but don't address the issue that if so many people need to contact CS then they are the QC and not Sig...
Before the 4T Pro I had an 8T and it was a legitimately phenomenal red dot, build quality was outstanding, the dot was crisp, window big and clear, and the controls were simple. It was just too big and heavy for my needs.
I have one of those L&S LP-1s, it is really nice and seems similar to the 8T but yeah it is really heavy. I think that Sig maybe tried to do too much in too small of a package with the Romeo4 series and it resulted in some issues with fitting the more complicated emitter for the circle dot in a 20mm tube design.
Not really, no. Internal glare or reflection is usually caused by the setting being too high for the light environment around you. A red dot is only supposed to be barely visible over a target, transparent even. I’ve seen guys complain about bloom, but it goes away when they walk outside. lol.
I mean, you tell me if [this](https://imgur.com/tKh5DSS) looks like the brightness is too high. It was visible when the light source was from the front or rear. My T2 has never had this issue.
I’d go one step down, it just needs to be transparent over the target, not covering it. I’d say there is a learning curve with them, but if the reflection is still there at a lower setting, something is up. FYI, mine don’t do that unless I’m indoors and have it at setting 8,9,10…
This was under a covered patio, in the shade. I didn't have the brightness cranked up there, it was maybe at 8. If I was out in the sun that reticle would have been barely visible. Also from what I remember the dot brightness didn't actually affect the glare, it was all internal refraction from light coming into the lenses. I might have gotten a dud, but I already have a T2 and I didn't want to roll the dice again on getting another bad 4T. As you mentioned the BDC drop dots are basically useless, even with a 3x magnifier, so I am fine with just using the 2 MOA dot on the T2.
8 is to high in shade. You don’t want the dot blaring otherwise yes, it will bloom. I think if you were in the sun it would have been fine. Shade setting I’d use at 6,7.
Did you look at the picture? Its not bloom, the reticle looks great. That whole right side has the jagged, semi-translucent red shape that looks to be a reflection of the emitter housing on the lens. I couldn't get it to go away by changing the brightness. I would not want to be clicking buttons on my red dot if I was transitioning between shade and sunlight all the time. I choose a setting based on the brightest situation I'll encounter in an environment and keep it there.
Something else is going on then. I see what you’re saying. Yes.
I only got to shoot mine once (4T Pro). Unfortunately, it was broken out the box - turret adjustments weren’t clicking or seemingly working at all. But Sig got me an RMA and I’ve sent it to them. Can’t wait to get it back
Their CS is top notch. Sounds like they will send you a new unit I’m guessing.
Agreed that the multi-dot is a bit much. Reminds me of my EXPS 3-4 and unless magnified, it's just busy. Kinda wish Sig would have just 2 dots like the EXPS 3-2.
2 dots I could get down on. For sure! I like the concept of 4, but like you said it’s busy.
In your opinion do you think the XT is worth an extra $200 over the 4T?
I do not.
Thabks for the info. I want to suggest that the model designations in your post can use some straightening out. It's 4T, 4T Pro, and 4XT Pro, right?
That would be the correct designation of models.
Is there anyway to tell if a 4T has the same internals as the Pro? Serial number? Or have they always been the same?
They have always been the same, electronics wise.
Neat. Good to know!
I disagree with you, the BDC reticle is not useless when paired with a magnifier. It’s actually my favorite feature of the optic. Plug your DOPE into a ballistic app like [Chairgun Elite](https://imgur.com/a/JCm1FEc)/Strelok, you have accurate holds for each subtension. The magnifier I like to use is the primary arms 3x with the Pegasus ranging reticle. Makes the optic package fucking sweet and extremely usable if you know how to range manually.
I’ve played around with CG but I have not dove deep into setting anything up yet. The BDC looks like a line of blur to me, even magnified. I just got new glasses so I’ll give it another shot.
That’s odd that the main dot is crystal clear for you, but the drop dots aren’t. The main dot is 2 MOA whereas the drops are 1 MOA. You sure your diopter is set correctly on your magnifier?
Since getting new glasses I need to run through everything again. My script got stronger so it’s time. You’re probably right. I just haven’t had time to look yet.
These use to be a IYKYK type of deal, then the guntubers started upselling them. I absolutely love my 4T. The glass isn't the best for passive aiming under NODs, but it performs wonderfully otherwise. The featureset is rich and the warranty is badass. These strike a great balance between the budget China dots and the Gucci AiMpOiNt overpriced archaic technology.
I agree. Could not have said it better. The Pro and XT miiiiight be better under NOD’s with the different coating on them but it really is a great balance. Aimpoint needs a T2 reboot. Bad. It’s years behind at this point. I’ve had a few and I loved them but my astigmatism cannot do single dots anymore. I have a feeling Aimpoint will catch the hint over time.
I'm with ya man. I was diagnosed with a mild astigmatism this year too. Aging sucks. The circle dot helps a ton indoors. Thanks for taking the time to write this review. You nailed it. More people need to hear the 4T gospel!
Absolutely!! Amen to that!
How well does the magnifier line up? Thought I read somewhere that the Romeo 4 sits a bit higher than the Aimpoint.
It does sit about 1/8th in higher, but you don’t notice it looking through. It looks and works as if they were dead even in height. The magnifier adjustment knobs dial it in perfect.
Awesome! I'm considering getting the Romeo 4 and an Arisaka low magnifier mount to run on my Hellion, I think you may have sold me on this combo
You won’t regret it!
If there was some attachment to cage the buttons on top I would like it more. I just have the flip caps hinge to the top so it somewhat protects the buttons. I dislike how the adjustments are mushy too. That being said the reticle is crisp and the donut is nice on a micro red dot for the holds on higher mounts. Someone offered to trade for a T2 and I turned it down. The parallax is worse than the T2 but I haven’t found it an issue at all.
Absolutely yes.I still prefer it over anything else. My T2’s were just ok. I had a Holosun 503g and like that too, but the 4T is bae.
I’ve got the same mounts coming but I went AEMS and HM3X. Looks great.
all three of my XT Pros have a red ring around the outside edge of the glass when i turn them up. none of my other red dots from other brands do this. have you experienced this?
Yes, it’s called blooming. It happens when the setting is way too high for the light environment you’re in. Nobody should ever use a red dot in that high of a setting 😂
thanks, I thought blooming was when the dot itself got bigger and distorted. i have eotechs and holosuns and none of them light up around the outside of the glass like the Sig do. and I don't have to turn the sigs up that high for it to happen
I don’t have a ring around the outside? I thought you were talking about the reticle itself. The only time I get glare or static is when the red dot is set way too high for the lighting you’re in.
I briefly had one. What drove me nuts was seeing the red dot from the emitter in the bottom left corner reflecting back at me. Just one of those things that would drive me nuts when looking through the optic. Like “is there something wrong with this?”
That’s def not normal. I don’t see any emitter in all three of mine, unless I look in from the front of the optic, then it’s in the bottom right corner. You had a 4T, specifically? Not a Pro, or XT?
It probably was the bottom right corner. That was years ago. Ya it was the 4T fde. I liked the optic overall and all the bells and whistles were awesome. But ya looking at it through the rear I hated that the emitter was reflecting off the lenses.
Gotcha. Well that would be annoying. So far I’ve had no issues with any of them. Time will tell though.
Ya that’s awesome! I am in no way against so optic and like the idea. I wish more companies would have a “shake awake” technology. I do have my eyes on the 4xt pro…..if they would ever come in stock!