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Posted: 11/26/2018 3:28:24 PM EDT
[#1]
Depending when it was built...EOtech had an issue with this several years ago. They remedied the issues after Aug 2016 I believe...
If you contact them...they have been known to fix this out of warranty for no charge...but not sure if they are still doing that or not. |
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Posted: 11/26/2018 3:56:13 PM EDT
[#2]
Quote HistoryQuoted:
Depending when it was built...EOtech had an issue with this several years ago. They remedied the issues after Aug 2016 I believe... If you contact them...they have been known to fix this out of warranty for no charge...but not sure if they are still doing that or not. I could always contact them to see. |
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Posted: 11/26/2018 6:07:44 PM EDT
[#3]
Yup those had issues with the nitrogen leaking.
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Posted: 11/26/2018 6:13:57 PM EDT
[#4]
Quote HistoryQuoted:
Yup those had issues with the nitrogen leaking. |
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Posted: 11/26/2018 6:26:44 PM EDT
[#5]
Does anyone understand the mechanism whereby a nitrogen leak causes the reticle to dim? I am skeptical about this as the cause, as the replacement air is 90% nitrogen and the laser is HeNe-ish red (~650 nm) which is not strongly absorbed by any gas present in air.
Which gas in air is the problem? |
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Posted: 11/26/2018 7:20:35 PM EDT
[#6]
Quote HistoryQuoted:
Does anyone understand the mechanism whereby a nitrogen leak causes the reticle to dim? I am skeptical about this as the cause, as the replacement air is 90% nitrogen and the laser is HeNe-ish red (~650 nm) which is not strongly absorbed by any gas present in air. Which gas in air is the problem? AFAIK, the purpose of nitrogen purging optics is to prevent fogging on the inside. |
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Posted: 11/26/2018 8:12:46 PM EDT
[#7]
You have a grating issue. Contact EOTech for repair/replacement.
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Posted: 11/26/2018 8:18:57 PM EDT
[#8]
Quote HistoryQuoted:
You have a grating issue. Contact EOTech for repair/replacement. |
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Posted: 11/26/2018 8:36:26 PM EDT
[#9]
Quote HistoryQuoted: I fully intend on contacting them but why do you say I have a grating issue? |
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Posted: 11/26/2018 8:43:19 PM EDT
[#10]
Quote HistoryQuoted:
Does anyone understand the mechanism whereby a nitrogen leak causes the reticle to dim? I am skeptical about this as the cause, as the replacement air is 90% nitrogen and the laser is HeNe-ish red (~650 nm) which is not strongly absorbed by any gas present in air. Which gas in air is the problem? Eotech used to fix it real quick, hopefully that's still the case. OP let us know. |
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Posted: 11/26/2018 9:03:30 PM EDT
[#11]
Quote HistoryQuoted: Oxygen eats and degrades the film on the inside of the glass that the laser shines on. The nitrogen purge was for that and the fogging. Eotech used to fix it real quick, hopefully that's still the case. OP let us know. |
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Posted: 11/26/2018 9:06:44 PM EDT
[#12]
Quote HistoryQuoted: Because a grating issue will typically cause this or cause the reticle to be faded in certain areas, like the center, but not the edges. |
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Posted: 11/26/2018 9:39:15 PM EDT
[#13]
Quote HistoryQuoted: I fully intend on contacting them but why do you say I have a grating issue? |
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Posted: 11/26/2018 10:06:00 PM EDT
[#14]
Quote HistoryQuoted:
Think it was built around 2008-2009. I have to look at the sticker. I could always contact them to see. Quote HistoryQuoted:
Quoted:
Depending when it was built...EOtech had an issue with this several years ago. They remedied the issues after Aug 2016 I believe... If you contact them...they have been known to fix this out of warranty for no charge...but not sure if they are still doing that or not. I could always contact them to see. |
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Posted: 11/26/2018 10:37:13 PM EDT
[#15]
Quote HistoryQuoted: Meant to see degrading issue....stupid auto spell. "To compensate for any change in the laser wavelength, the EOTech sight employs a holography grating that disperses the laser light by an equal amount but in the opposite direction as the hologram forming the aiming reticle. The result is a reticle that is stable with the change in temperature." |
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Posted: 11/27/2018 12:30:31 AM EDT
[#16]
Quote HistoryQuoted: So in addition to repurging, they have to replace the film on the inside of the glass? Quote HistoryQuoted: So in addition to repurging, they have to replace the film on the inside of the glass? Also I may have had it wrong or they gave me wrong info. Looks like it's moisture coming in eating it up and not oxygen. From their site Reticle fade as a result of moisture incursion may affect sights manufactured before August 2014. Even for sights manufactured before that date, the effect may not be substantial. The issue is that atmospheric moisture conditions can lead to the HWS’s reticle fading or eventually disappearing. It typically is noticeable first when the reticle appears to dim at the edges of the sight window. The sight’s age and environmental exposure are factors that accelerate reticle dimming. |
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Posted: 11/27/2018 7:47:21 AM EDT
[#17]
The nitro purge is required to remove contamination in gases that can cause problems including reticle and optics degradation, metal corrosion, resistor defects, and electrical defects.
Moisture being the biggest factor |
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Posted: 11/27/2018 1:15:01 PM EDT
[#18]
I'll probably fill out the form tomorrow to ( hopefully) have it fixed because I have to pull the sight off my rifle to get the serial number etc.
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Posted: 11/27/2018 4:05:09 PM EDT
[#19]
Are they still buying them back? That's what I did and mine was in perfect condition. I took the money and bought a Trijicon MRO that has none of the EOTech problems and weighs half as much. The battery will last FIVE YEARS in the #3 'on' position and obviously quite a bit longer when turned off. It takes only a 2032 so I splurged and got the Eveready Lithium ones for it and my other dot sight. I really got tired of having to replace the damn battery in the EOTech every time I went to use it.
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Posted: 11/27/2018 6:14:15 PM EDT
[#20]
Quote HistoryQuoted:
Are they still buying them back? That's what I did and mine was in perfect condition. I took the money and bought a Trijicon MRO that has none of the EOTech problems and weighs half as much. The battery will last FIVE YEARS in the #3 'on' position and obviously quite a bit longer when turned off. It takes only a 2032 so I splurged and got the Eveready Lithium ones for it and my other dot sight. I really got tired of having to replace the damn battery in the EOTech every time I went to use it. I've had nothing but problems with all 4 EOTechs I've own or owned. I sold 2 years ago and have this 557 and a 552 left. I don't store batteries in mine because they drain them when not in use. Nice recticle and sight body but plagued with problems. BTW, I submitted my repair request online this evening. My manufacturer date is December 2007. I'll let you guys know what happens. |
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Posted: 11/27/2018 6:15:44 PM EDT
[#21]
Quote HistoryQuoted:
Are they still buying them back? That's what I did and mine was in perfect condition. I took the money and bought a Trijicon MRO that has none of the EOTech problems and weighs half as much. The battery will last FIVE YEARS in the #3 'on' position and obviously quite a bit longer when turned off. It takes only a 2032 so I splurged and got the Eveready Lithium ones for it and my other dot sight. I really got tired of having to replace the damn battery in the EOTech every time I went to use it. |
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Posted: 11/27/2018 10:10:15 PM EDT
[#22]
Quote HistoryQuoted:
Does anyone understand the mechanism whereby a nitrogen leak causes the reticle to dim? I am skeptical about this as the cause, as the replacement air is 90% nitrogen and the laser is HeNe-ish red (~650 nm) which is not strongly absorbed by any gas present in air. Which gas in air is the problem? If your reticle is starting to get washed out even at the max levels of illum, it's definitely a purge issue. |
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Posted: 11/28/2018 12:32:44 PM EDT
[#23]
I purchased one used on the EE here a couple of years ago that had that issue and they fixed it free of charge. All I had to do was pay shipping and I had it back in less than two weeks.
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Posted: 11/28/2018 1:05:16 PM EDT
[#24]
Quote HistoryQuoted:
I purchased one used on the EE here a couple of years ago that had that issue and they fixed it free of charge. All I had to do was pay shipping and I had it back in less than two weeks. |
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Posted: 11/28/2018 7:22:49 PM EDT
[#25]
Got a reply from EOTech. They aren't going to fix it.
"It is EOTech’s goal to ensure that all sights meet factory specifications after repair. Due to the age of your optic, repair is no longer possible or recommended. In an effort to provide value long after our warranty obligation, EOTech would like to extend to you an opportunity to trade in your optic for a 50% off coupon code to be used towards the purchase of a new EOTech HWS model of your choice at eotechgear.com" Thank You, Dan Lelko Consumer Support Specialist What do you all think? |
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Posted: 11/28/2018 7:42:55 PM EDT
[#26]
I would be pretty bummed with EoTech but given the age of the optic I would probably let it be.
I had a few EoTech before and they all eventually had the same issue. I turned mine last one in during the recall and bought an MRO with the refund, which is great btw. The newest editions allegedly fixed the thermal drift and nitrogen leaking issues. Whhen I saw the chance to buy a EXPS3-0 for $375 on Cyber Monday I figured I would give them another opportunity. |
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Posted: 11/28/2018 8:01:03 PM EDT
[#27]
50% off a new Eotech?
Sign me up. Edit: shopped their site pricing. Fuck no. |
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Posted: 11/28/2018 8:22:37 PM EDT
[#28]
Quote HistoryQuoted:
Got a reply from EOTech. They aren't going to fix it. "It is EOTech’s goal to ensure that all sights meet factory specifications after repair. Due to the age of your optic, repair is no longer possible or recommended. In an effort to provide value long after our warranty obligation, EOTech would like to extend to you an opportunity to trade in your optic for a 50% off coupon code to be used towards the purchase of a new EOTech HWS model of your choice at eotechgear.com" Thank You, Dan Lelko Consumer Support Specialist What do you all think? |
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Posted: 11/28/2018 8:35:04 PM EDT
[#29]
Why didn't you trade it in when they where allowing it?
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Posted: 11/28/2018 8:37:49 PM EDT
[#30]
One of many possible issue with eotech. Why people who have to use their own money still buy these baffles me.
Don’t get me wrong, I’m hoping the new sights have fixed the issues but after reading court documents stating a full redesign was needed to fix all issues I’m not holding my breathe. |
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Posted: 11/28/2018 8:38:48 PM EDT
[#31]
Quote HistoryQuoted:
What do you all think? After that, all three of them sat in my gun safe, unused, while the warranty slowly elapsed. One day, when I wanted to use the rifles, only one of three EOTechs worked. One worked; one was too dim to see in daylight; the third would not turn on* at all. EOTech would not even repair them, not even at MY expense,... not even repair them at my expense.** I was never notified of the buy-back, despite being an original owner with sights purchased thru regular channels (not grey market). I found out about the buy-back via AR15.com but that came too late (~1 month?). They would not honor that offer to me. They also offered me a 50% off coupon. Given the pattern of horrible reliability I personally experienced in unused optics and their lack of cooperation in remedying latent manufacturing defects, I will never spend any more money on EOTech products. My advice to you is to look elsewhere and not send more money to a company with anything less than a lifetime warranty. . . . * As it turns out, the one that would not turn on had a broken power lead inside the case. It just snapped (brittle fracture). ** My hypothesis - Now that L3 owns EOTech, they want to "cut the cord" (eliminate the recurring financial risk) which exists with legacy products in the consumer system. The legacy products were made by the original EOTech company, prior to the L3 buy-out. |
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Posted: 11/28/2018 8:52:04 PM EDT
[#32]
More BS from Trollslayer -
1. Buy an Aimpoint (or other red dot you like). Primary Arms has nice products that are a lot less than an Aimpoint, if cost is an issue. 2. Parallax as a selection criteria is grossly, just grossly, over-emphasized in picking a red dot*. Keep your head on the stock and there is NO parallax. If you have to shoot around corners while someone is shooting back, learn how much to compensate (hint, it's a small amount that may not matter). 3. Battery life is also grossly over-emphasized. You need to maintain your rifle at least annually. Change the batteries as part of that cycle, no matter whether you leave the sight turned on or off. I hope some of this helps in some way. Enjoy! . . . * When the market is flooded with products and many/most are really good, people look for small things to help discriminate between this one and that. |
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Posted: 11/28/2018 9:20:42 PM EDT
[#33]
Quote HistoryQuoted:
Why didn't you trade it in when they where allowing it? |
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Posted: 11/28/2018 9:26:32 PM EDT
[#34]
Quote HistoryQuoted:
50% off a new Eotech? Sign me up. Edit: shopped their site pricing. Fuck no. |
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Posted: 11/28/2018 9:33:47 PM EDT
[#35]
Quote HistoryQuoted:
More BS from Trollslayer - 1. Buy an Aimpoint (or other red dot you like). Primary Arms has nice products that are a lot less than an Aimpoint, if cost is an issue. 2. Parallax as a selection criteria is grossly, just grossly, over-emphasized in picking a red dot*. Keep your head on the stock and there is NO parallax. If you have to shoot around corners while someone is shooting back, learn how much to compensate (hint, it's a small amount that may not matter). 3. Battery life is also grossly over-emphasized. You need to maintain your rifle at least annually. Change the batteries as part of that cycle, no matter whether you leave the sight turned on or off. I hope some of this helps in some way. Enjoy! . . . * When the market is flooded with products and many/most are really good, people look for small things to help discriminate between this one and that. I do own several Aimpoints. I've never had a bad one; unlike every EOTech I've ever owned. |
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Posted: 11/28/2018 9:46:21 PM EDT
[#36]
Junk rifle
Bugged out EoTech Combine the two, take out an ad on CL Profit! Buy an Aimpoint, or a Holosun, or ANYTHING ELSE that's not EOTech made. |
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Posted: 11/29/2018 2:08:37 AM EDT
[#37]
What you describe is a very well known issue w EOTech. EOTechs get reticle fade caused by moisture infiltration bc of shit seals. It’s one of the fatal flaws the army discovered with EOTech that the company tried to hide from the DOD.
They are a trash can company. Buy something else. |
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Posted: 11/29/2018 2:15:35 AM EDT
[#38]
Quote HistoryQuoted: One day, I tested one of my EOTech-equipped rifles. The sight would not work. That sight was repaired by EOTech under warranty. After that, all three of them sat in my gun safe, unused, while the warranty slowly elapsed. One day, when I wanted to use the rifles, only one of three EOTechs worked. One worked; one was too dim to see in daylight; the third would not turn on* at all. EOTech would not even repair them, not even at MY expense,... not even repair them at my expense.** I was never notified of the buy-back, despite being an original owner with sights purchased thru regular channels (not grey market). I found out about the buy-back via AR15.com but that came too late (~1 month?). They would not honor that offer to me. They also offered me a 50% off coupon. Given the pattern of horrible reliability I personally experienced in unused optics and their lack of cooperation in remedying latent manufacturing defects, I will never spend any more money on EOTech products. My advice to you is to look elsewhere and not send more money to a company with anything less than a lifetime warranty. . . . * As it turns out, the one that would not turn on had a broken power lead inside the case. It just snapped (brittle fracture). ** My hypothesis - Now that L3 owns EOTech, they want to "cut the cord" (eliminate the recurring financial risk) which exists with legacy products in the consumer system. The legacy products were made by the original EOTech company, prior to the L3 buy-out. |
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Posted: 11/29/2018 2:37:51 AM EDT
[#39]
Quote HistoryQuoted:
Theyve always been owned by L3! The original Eotech box cover cardboard had the L3 logo on it! Im not about to defend Eotech but do you know what youre talking about? |
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Posted: 11/29/2018 2:52:19 AM EDT
[#40]
Quote HistoryQuoted:
Theyve always been owned by L3! The original Eotech box cover cardboard had the L3 logo on it! Im not about to defend Eotech but do you know what youre talking about? ""NEW YORK--(BUSINESS WIRE)--Sept. 22, 2005--L-3 Communications (NYSE:LLL) announced today that it has signed an agreement to acquire EOTech, Inc. (EOTech) for approximately $49 million in cash, subject to customary closing conditions. The acquisition is expected to add approximately $25 million to L-3's sales for 2006 and be slightly accretive to L-3's earnings. The acquisition is expected to be completed in the fourth quarter of 2005. The whole point of forming my hypothesis is to try and understand, to rationalize, why an otherwise good company (L3) would treat its retail customers so poorly. My hypothesis is not a fact, it is me grappling with the events that transpired to reach closure. My real closure is, I won't buy any more EOTech products. |
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Posted: 11/29/2018 4:26:59 AM EDT
[#41]
@OP
My 2017 built EXPS2 has been excellent. 
Take all criticism in the internet firearm community with a grain of salt rather positive or negative. We know anytime there has been a Glock failure it was the owners fault, there has never been an Aimpoint failure in the history of the universe, and SCARs are totally worth every penny. 
I was in theater among ODA and 75th around the same time period the whole EO #metoo debacle started.., NO ONE CARED.., NOBODY.., but of course civilians on the internet back in the US were livid and sooo appalled. I just don't buy into the internet drama. A person can be so disgusted with EOtech, but for example, let's say; still buy and drive GM products. A company that covered up responsibility for American deaths for 13yrs and was under investigation by the DoJ? Anyways, I'd use the coupon op. Maybe on a LPVO? EO has totally redone tooling and electronics so I see the rational behind not servicing an older optic. Sucks, because when the big bad EO was throwing out money to people for old optics, including second hand owners with NO proof of purchase, many of them never had issues to begin with and just wanted to take advantage. |
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Posted: 11/29/2018 7:12:38 AM EDT
[#42]
New logo EOTechs are a completely different animal. Get a tan EXPS3-0. They are not batch tested.
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Posted: 11/29/2018 7:15:23 AM EDT
[#43]
Quote HistoryQuoted:
@OP My 2017 built EXPS2 has been excellent. https://i.imgur.com/tbyWSiE.jpg?1 Take all criticism in the internet firearm community with a grain of salt rather positive or negative. We know anytime there has been a Glock failure it was the owners fault, there has never been an Aimpoint failure in the history of the universe, and SCARs are totally worth every penny.
I was in theater among ODA and 75th around the same time period the whole EO #metoo debacle started.., NO ONE CARED.., NOBODY.., but of course civilians on the internet back in the US were livid and sooo appalled. I just don't buy into the internet drama. A person can be so disgusted with EOtech, but for example, let's say; still buy and drive GM products. A company that covered up responsibility for American deaths for 13yrs and was under investigation by the DoJ? Anyways, I'd use the coupon op. Maybe on a LPVO? EO has totally redone tooling and electronics so I see the rational behind not servicing an older optic. Sucks, because when the big bad EO was throwing out money to people for old optics, including second hand owners with NO proof of purchase, many of them never had issues to begin with and just wanted to take advantage. |
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Posted: 11/29/2018 7:43:08 AM EDT
[#44]
Quote HistoryQuoted: With the coupon the cost will be the same as buying it elsewhere. The prices on their site are 
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Posted: 11/29/2018 9:03:37 AM EDT
[#45]
Their prices are full MSRP. The last thing you want to do as a manufacture is piss off your dealers by competing with them. Standard stuff here.
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Posted: 11/29/2018 9:30:34 AM EDT
[#46]
Quote HistoryQuoted:
Their prices are full MSRP. The last thing you want to do as a manufacture is piss off your dealers by competing with them. Standard stuff here. |
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Posted: 11/29/2018 9:43:05 AM EDT
[#47]
I bought an XPS2-0 used an a year later the reicle was visible on half the screen, but faded on the other half. I emailed them, they sent a return authorization and they fixed it for free. About a 3 week turn around. Probably around 4 years ago.
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Posted: 11/29/2018 10:24:49 AM EDT
[#48]
Quote HistoryQuoted:
Then Eotech should offer the 50% off deal on ANY new Eotech sight, regardless of source. So long as it's a documented new purchase, they still recoup some funds. |
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Posted: 11/29/2018 10:53:59 AM EDT
[#49]
Quote HistoryQuoted:
FIFY. Quote HistoryQuoted:
Quoted: With the coupon the cost will be the same as buying it elsewhere. The prices on their site are In reality they are offering NOTHING. I have to pay to ship them my old ( still mostly functioning) EOTech to purchase a new one; I can get the same price or for less elsewhere...... 
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Posted: 11/29/2018 11:03:46 AM EDT
[#50]
Quote HistoryQuoted:
One of many possible issue with eotech. Why people who have to use their own money still buy these baffles me. Don't get me wrong, I'm hoping the new sights have fixed the issues but after reading court documents stating a full redesign was needed to fix all issues I'm not holding my breathe. They are amazing to shoot with. Like really amazing. But everything else about them sucks. If I were going to be fighting and had a supply chain....I'd be running eotech. But for a private funded home defense/range toy optic....hell no. And I had one. I miss shooting with it, but i sure as fuck do not mind not always having to swap batteries, turn it on, and worry about it going bad at the wrong time and being out a $500 optic. They are disposable $500 sights that are not compatible with what I need from a $500 sight. Their only redeeming features is reticle and fov. But those are useless if the damn thing doesn't work. |
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