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Is the ACOG really useless at night or dark buildings?

18599 Views 49 Replies 17 Participants Last post by  SeaMac
I'm researching optics for my 17s with the goal of getting an optic that I can shoot both eyes open at 1x and up to 6x with one eye. The closest thing I can find are the Elcan SpecterDR and the ACOG. I would get the Elcan if it wasn't so dang heavy. One of the reasons I like my SCAR so much is because of the weight. Tipping it over 10 pounds sort of defeats the purpose for me. The other option is the ACOG except that it doesnt take a battery. I believe the concept of the ACOG is great but I hear complaints about it being worthless in dark situations since it's utilizing fiber optic. That leads me to my primary question 1) what is your experience with the ACOG in dark situations and 2) what are my other options?
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I think you need to do a little more research into the ACOGs. They have a tritium source in them that makes them excellent for night use without having to depend on a battery for illumination. I have Trijicons on both my SCARs and several other weapons and all are very good at night. Trijicon may make a low end ACOG without the tritium source and maybe that is what you are thinking about or you are looking at a Chinese knockoff.
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What 17heavy said. There's a fiber optic tube which captures sunlight to give you daytime visibility. The reticle is tritium lit too so that it works in the dark as well.

There's another company making very ACOG-like scopes (Brown or something?) which use a battery instead of tritium+fiber optics
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One more for an ACOG here. I run one on my 17S, and I've used 'em on work M4s/M4A1s for years. Great optics, and perfect for a do everything carbine. Only ACOGs I've ever used that were "useless at night" were some Army issued ones that probably had their tritium tube cracked. Every personally owned one I've seen has been excellent.
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I no with flashlights you can wash out the reticule it happened to me when i was playing with it.
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Thanks for the information. I missed a few things as noted above. I guess I'm confused why folks are getting RMR if you can use the ACOG for CQB? Is the eye relief and magnification the issue? I just dont see many other options that fit my need however I feel like I'd have buyers remorse with the ACOG especially at 1 grand. SCAR is a niche rifle so there arent many options...If you had to use the SCAR in an emergency situation, I'd expect 80% or more of your targets to be within 50 yards.
Most ACOG's are 4x mag an RMR is 1x mag, some find and there's some optical science to support a 1x as superior for CQB. I too used to own an ACOG which sat atop my M4gery but it was before the time that Trijicon introduced the fiber optic tube, even still it worked very well with tritium illumination alone in low/no light situations. YMMV

Another option for you although it is pricey.....Leupold Mark 6 1-6x20, it can be and is used successfully on the two-way range with both eyes open (CQB) at 1x and one eye closed (precision) at 1-6x. Again YMMV


I guess I'm confused why folks are getting RMR if you can use the ACOG for CQB? Is the eye relief and magnification the issue? I just dont see many other options that fit my need however I feel like I'd have buyers remorse with the ACOG especially at 1 grand. SCAR is a niche rifle so there arent many options..
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It will work, but if CQB is your primary mission concern, I personally would not choose a magnified optic like the ACOG unless I was also going to mount a RMR to it or offset iron sights.
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It will work, but if CQB is your primary mission concern, I personally would not choose a magnified optic like the ACOG unless I was also going to mount a RMR to it or offset iron sights.
For me 50 yards out is my primary. While I believe the SpecterDR is the perfect optic minus about 1 pound, a 10-12 pound rifle is a no go. All great comments guys. I'll more than likely get the ACOG with a RMR attached...especially since the ACOG has tritium.

Most ACOG's are 4x mag an RMR is 1x mag, some find and there's some optical science to support a 1x as superior for CQB. I too used to own an ACOG which sat atop my M4gery but it was before the time that Trijicon introduced the fiber optic tube, even still it worked very well with tritium illumination alone in low/no light situations. YMMV

Another option for you although it is pricey.....Leupold Mark 6 1-6x20, it can be and is used successfully on the two-way range with both eyes open (CQB) a 1x and one eye closed (precision) at 1-6x. Again YMMV
Thank you, I'll check it out!
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At 50 yds wouldn't an Aimpoint or similar work out?
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One thing you should consider and be aware of, tritium eventually loses its effectiveness in about 11 years it's just about useless. Where it is true Trijicon can replace the tritium source there is something to be said about battery power. I once drank nothing but the tritium kool-aid for my optics now I choose batteries with the sole exception being my pistol's iron sights.

You mention 50yds and out being your primary shooting objective, with that in mind the Leupold Mk6 1-6x20 is definitely worth the close look. At 1x with medium illumination it was designed for 50yd both eyes open, I own one and can attest to its effectiveness in CQB. It also allows you to increase mag for precision mid-range target interdiction. I too looked at the SpectreDR and ACOG's even the new VCOG but honestly couldn't find a better optic for CQB to mid-range targeting than the Mk6. Then of course there's Leupold's warranty support and customer service which in my recent experience and opinion has no equal.
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At 50 yds wouldn't an Aimpoint or similar work out?
Yes and I could always swap out depending on what I'm doing at the range that day. If the weapon was sitting at home i'd definitely go that route and just buy QD mounts. I just checked out the Browe 4x32 Tactical and it looks sweet but it doesnt have RMR mounts on the top like the ACOG does as far as I can tell..other than that it's very nice..

One thing you should consider and be aware of, tritium eventually loses its effectiveness in about 11 years it's just about useless. Where it is true Trijicon can replace the tritium source there is something to be said about battery power. I once drank nothing but the tritium kool-aid for my optics now I choose batteries with the sole exception being my pistol's iron sights.

You mention 50yds and out being your primary shooting objective, with that in mind the Leupold Mk6 1-6x20 is definitely worth the close look. At 1x with medium illumination it was designed for 50yd both eyes open, I own one and can attest to its effectiveness in CQB. It also allows you to increase mag for precision mid-range target interdiction. I too looked at the SpectreDR and ACOG's even the new VCOG but honestly couldn't find a better optic for CQB to mid-range targeting than the Mk6. Then of course there's Leupold's warranty support and customer service which in my recent experience and opinion has no equal.
That's good information man. I'll see if the Buds Gunshop up in TN has one or maybe the Bass Pro Shop. There aret many options in East TN.
I would look at all options available by that I mean actually look through them, if you do choose a Leupold you probably won't be able to beat Stryker Enterprises price for it and an ADM mount. I did just that, searched, looked at, looked through then made by decision then searched the world for the lowest price, when all along a supporting vendor had that lowest price. Good luck... :?
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At 50 yds wouldn't an Aimpoint or similar work out?
I had an Aimoint on my FN2000 and it worked out just fine to 75 yds...both eyes open...and less than $500
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Read up on the bindon aiming concept. It will school you on how acogs work for cqb.
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The other Acog like option that you have is the Browe BCO, which is made out of titanium, and another one that Browe makes is aluminum and both take batteries.The biggest selling point on these optics are their (Target Light Sensor Tech), where the reticle brighten's or lowers to where you are aiming and not where you are standing.I have one but I can't really tell you much about it cause, it has not been to the range but I can tell you that the Target Light Sensor Tech does work very well.When I compare it to my Mark 6, I like the idea of a variable power more.
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Browe is ex trijicon engineer anyway he took the acog and adjusted to his likings
The other Acog like option that you have is the Browe BCO, which is made out of titanium, and another one that Browe makes is aluminum and both take batteries.The biggest selling point on these optics is (Target Light Sensor Tech), where the reticle brighten's or lowers to where you are aiming and not where you are standing.I have one but I can't really tell you much about it cause, it has not been to the range but I can tell you that the Target Light Sensor Tech does work very well.When I compare it to my Mark 6, I like the idea of a variable power more.
right, but there's no RMR mount on top, correct?
Put a PVS24 in front of them and they work great at night.
Well there is most of the time some sort of ambient light around your target (unless your in a dark building with very few windows) that silhouettes once your eyes adjust but for people who want to have good options for prep: an aimpoint PRO or CompM4, EOTech cant me beat. Look at a Viper PST Mildot illum prolly the best for high budget preppers, The piper /crosshair is sweet to some. If ACOGs arent giving you a good vibe then it's prolly not for you.
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