All is Not Right in Eotech Land... *UPDATE Getting Worse*

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Heads up shooters! This is right off Soldier Systems, who did some stellar research to back this up.

It looks like EoTech holographic weapon sights can experience substantial MOA drift with particularly hot or cold temperatures. There are 3 peices of evidence that they're sourcing here: a USSOCOM Safety message, recent modifications to the company manuals, and SEC filing with a $26 million dollar liability. The optics can apparently suffer MOA shift and extreme high and low temperatures, and the approved operating temperatures have been completely removed from the manuals, but also Eotech has changed the wording to clarify that each click is "approximately .5 MOA"

Here's the full article: http://soldiersystems.net/2015/09/30/something-is-amiss-at-l3-warrior-systems-eotech/

USSOCOM Issues Safety of Use Message for EOTech Enhanced Combat Optical Sights – Plus More Goings On

Over the past few weeks, three separate issues have come to our attention regarding EOTech’s line of Holographic Weapon Sights (HWS). While we initially thought they weren’t related as they came up one by one, we realized they were all connected once we had looked into all three. Consequently, we believe they should be presented together, along with the source documentation.

Safety Of Use Message Issued
Although it’s the last one we uncovered, we’ll begin with the most glaring piece of information. On 14 September, the SOF Weapons Program Management Office at NSWC Crane released a Safety of Use Message regarding issues with EOTech’s Enhanced Combat Optical Sights (ECOS), which is how they refer to HWS. This certainly caught our attention as the PMO is responsible for USSOCOM weapons. That message ultimately serves as the linchpin, tying together the other two issues we’ll soon address.

This critical bit of information would have been a stand-alone article, but it added credence to the others and offered coherence to some otherwise inexplicable issues. It also allowed us to concentrate on the facts presented in the various documentation. We will introduce the other issues after you get a chance to read the SOUM, which was obtained by Soldier Systems Daily. The Message has no date-time-group but was transmitted via official email traffic to SOF units on 14 September, 2015 and there are no markings limiting distribution.

They've got the full PDF up on SSD

While there is a great deal of information in the SOUM, two glaring issues stick out. The first is the reliability of the HWS in extreme temperatures, referred to as “Thermal Drift”. The PMO has noted a +/- 4 MOA shift at -40 Deg F and 122 Deg F. Second, is the concern over the claim by EOTech that their HWS are parallax free which was the subject of a previous Safety of Use Message from the same office issued 16 March, 2015. In this case they noted between 4 and 6 MOA parallax error depending on temperature conditions. Despite the PMO working with EOTech to rectify the issues, they still have not been resolved.

EOTech Updates User Manuals
EOTech seems to have officially backed off their previous claims regarding operational temperature ranges as well as parallax free attributes. Upon investigation, we noted that EOTech had changed the public specs for their HWS. Specifically, they published new manuals in June, 2015 which are available from the individual product listing pages on their website. Normally, this wouldn’t be that big of an issue by itself, but taken in conjunction with the other two pieces of information and what was removed from the manuals, it becomes so.

For example, they no longer claim that the Optics are “Parallax free”. They’ve also eliminated the temperature range from the manuals which is a pretty important factor for military operations. In the updated manuals, EOTech didn’t alert users to issues at extreme temperatures. Instead, they deleted references to operational temperature range altogether. Interestingly, both of these issues are addressed in the PMO’s Safety of Use Message we referenced earlier.

Although not addressed in this SOUM by the PMO, we also noticed in the latest versions (June 2015) of the user manuals that each click of sight adjustment is now “Approx. 0.5 MOA” rather than the more reassuring “0.5 MOA” cited in older manuals.

On the blog they've got some examples of the old and new manuals here.


L3 Communications SEC Filing
The last issue we’ll address is actually the first one that came to our attention. In L3 Communications’ most recent 10-Q SEC Quarterly filing of early August for Q2, they mention issues with the HWS. This is a document prepared by EOTech’s parent company L3 Communications, advising their investors of any issues, good or bad, which might affect their investment. While companies obviously put on a public face, SEC filings have weight because they are legal submissions to the government. They must be accurate, regardless of the news.

L3 mentions recognizing “an aggregate liability of $26 million in anticipation of a settlement related to a product specification matter regarding a holographic weapon sight product in the Warrior Systems sector of the Electronic Systems segment.” As we are unaware of any pending civil suits regarding the HWS, the question remains as to whom EOTech might owe such a large sum of money. We must point out that the government has acknowledged issues with the HWS in at least two SOUM from the SOF Weapons PMO. We’d also like to mention that the Quarterly filing talks of possible consequences if the company is implicated in wrongdoing regarding government contracts.


The SEC filing goes on to state that while, “The Company does not currently anticipate that any of these investigations will have a material adverse effect, individually or in the aggregate, on its consolidated financial position, results of operations or cash flows. However, under U.S. Government regulations, an indictment of the Company by a federal grand jury, or an administrative finding against the Company as to its present responsibility to be a U.S. Government contractor or subcontractor, could result in the Company being suspended for a period of time from eligibility for awards of new government contracts or task orders or in a loss of export privileges. A conviction, or an administrative finding against the Company that satisfies the requisite level of seriousness, could result in debarment from contracting with the federal government for a specified term.” They also recognize that, “Foreign government contracts generally include comparable provisions relating to terminations for convenience or default, as well as other procurement clauses relevant to the foreign government.” This can be pretty serious stuff.

The SEC Quarterly filing is also up on SSD

Putting It All Together
As you can see, the three pieces of information certainly seem related when presented together. In the same quarter, EOTech changed their HWS user manuals and acknowledged in an SEC filing, “aggregate liability of $26 million in anticipation of a settlement related to a product specification matter regarding a holographic weapon sight product…” In the next quarter, USSOCOM issues a Safety Of Use Message that addresses the very information removed from the HWS user manuals.

Data Was Right There In The Open
The documentation was readily available prior to its publication here, to anyone who knew where to look. While EOTech has made no public statements so far, regarding the issues with the performance of their family of HWS, they certainly haven’t hidden them either. To the contrary, we wouldn’t have discovered the issues so easily if they’d tried to hide them. They’ve published new versions of their user manuals and made them available to the public, as well as making an SEC filing which is public record and acknowledges there is an issue afoot. While it would be nice to see EOTech publicly acknowledge the issue, it would be interesting to find out how long they’ve known about it. Regardless, the only thing that remains up in the air, is whether L3 Communications will be required to pay that $26 million, to whom they would pay it, and if there will be any additional stipulations.

Let’s Hope They Fix It
In closing, we suggest that both commercial and military users of EOTech HWS read the SOUM, since EOTech has still not specifically addressed its customers regarding the issues. We hope that they do soon and offer a solution to rectify these issues.​



You may now flood the EE with "lightly used" Eotechs and proceed to gush about how you've always been an Aimpoint man from day one.
Meanwhile, does anyone actually shoot for fun at -40? When it happens, I don't even leave the damn house.

UPDATE:
From SSD: Apparently, issues surrounding the sights have been brewing since at least Spring. In a recent memorandum to customers obtained by SSD, distributor Elite Defense discloses that EOTech has not been delivering product since April of this year. It’s our understanding that Elite Defense is the single largest distributor of EOTech sights with extensive international sales of the brand. Even more interesting than the secession of deliveries, is that Elite Defense has chosen to terminate their long distributorship. Unfortunately, it seems EOTech has not acknowledged this action, nor Elite Defense’s proposal to convert their customer base to direct sales with EOTech. It’s like they’ve gone radio silent.

Dear Valued Customer,

As you are aware, in April of 2015, EOTech abruptly shut down all deliveries due to, what was described at the time as, a minor production issue.

Upon learning the true extent of the technical issues EOTech is facing, and that the delivery issues will continue, Elite Defense made the determination on Wednesday, October 21, 2015, to terminate our distribution and representation relationship with L-3 EOTech, which will be effective on January 19th, 2016.

We realize that this may be difficult for some of our customers. The termination of our contract with EOTech does not affect our longstanding relationship or our strong commitment to helping you transition your business and begin working with EOTech directly.

Elite Defense has supplied a transition plan to aid EOTech and our customers with a smooth transfer of business. The plan includes solutions to support the completion of all open orders via Elite over the course of the next 90 days, and to help with the process of converting our customers into direct sales channels through EOTech.

To date, we have not received any formal response from EOTech regarding our termination notice or the recommended transition plan. Additionally, EOTech has not communicated how they would like to handle current orders, future orders, or communications with our customers moving forward.

Unless directed otherwise by EOTech, Elite Defense will continue to process orders during the transition until the termination effective date of January, 19th, 2016. All new orders submitted to Elite Defense must include an acknowledgement from the customer stating that they have viewed the Safety of Use Message (SOUM) from USSOCOM and will accept the reduced specification standards of the EOTech sights. Contact your Elite Defense sales representative with any questions about this policy, your current order status or the transfer of future business.
Elite Defense prides itself on providing high value, innovative equipment to our customers. We continue to vet new products and technologies that we will introduce to you for years to come. Elite Defense continues to carry Patagonia, Ops-Core, Gentex, ITW, Tango Down, Diamondhead, Gemtech, Phokus, Wilcox, Drift Innovation, Bravo Company, PrincetonTec, and many more. Be sure to come visit us at Shot Show 2016, booth# 32411. We look forward to seeing you.

Sincerely,
Dennis Finnegan
President
ELITE DEFENSE​
 
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Or at 122°F (50°C)!

Afghanistan It got to +55 or hot enough to watch a bic lighter explode.

My concern is -40 to + 122F of even the ammo will impact different. So not just the sights. Too many factors. Also expand and contract due to heat and cold. That effects accuracy.
 
No problem! I'll take your used EoTechs thank you! They work the best for me in our climate. Love these sights for CQB matches!
**edit: referring to the xps 2/3 models. :)**
 
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Another internet bloggers expert opinion... Last month it was Fire Clean, this month it Eotechs. Maybe it will be Aimpoints for the month of October.
 
Another internet bloggers expert opinion... Last month it was Fire Clean, this month it Eotechs. Maybe it will be Aimpoints for the month of October.

I don't think there's any opinion being put forward by SSD. They've listed 3 events that happened.

The opinion is going to come from the people who read it and decide "yes this matters" or "no this doesn't matter"
 

Found the picture!

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pretty much a non issue....

1. it is a close range fast target acquisition sight... so most people will not notice a shift of a little bit.
2. ammo will behave differently with that much variation in the conditions anyway.... so as long as you zero in the conditions you are fighting in... you likely won't have a problem.
3. you should confirm your zero often if you rely on your weapon for real life (or competition) regardless.

4. -40 and +50 is a massive range for an electronic device that is designed to be under forces such as recoil. (expansion and contraction or circuit boards and other parts, etc)

ps... A $50,000 truck can have trouble starting in -40 without a block heater..... and can overheat at +50... why should a $500 sight be perfect?
(I know... apples to oranges... but hey..)
 
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While there is a great deal of information in the SOUM, two glaring issues stick out. The first is the reliability of the HWS in extreme temperatures, referred to as “Thermal Drift”. The PMO has noted a +/- 4 MOA shift at -40 Deg F and 122 Deg F. Second, is the concern over the claim by EOTech that their HWS are parallax free which was the subject of a previous Safety of Use Message from the same office issued 16 March, 2015. In this case they noted between 4 and 6 MOA parallax error depending on temperature conditions. Despite the PMO working with EOTech to rectify the issues, they still have not been resolved.



The real question, is the shift predictable and consistent? If it is predictable and consistent it works out to .5MOA for every 20F change is a 1/2" shift at 100m or 2" shift at 400m. As much as it should be fixed, this is IMHO a workable error, if it is known. With all the other factors that effects you and your weapon at extreme temperatures I'm not sure this is the end of the world stuff.

If it is a completely random shift from shot to shot, or firing position to firing position (think CF first gen C79 scope...) then it's a different story.

Also the Eotech is not a snipper scope. If you have one on your rifle in very general terms you are looking to hit an 8" plate (centre of mass) up to distances of 400m. It's main advantage is in instinctive shooting with both eyes open, normally in CQB under 100m. Even if your life was like a Hollywood movie and you had to pop out a deep freezer(-40) at a fancy Afghanistan's eatery mid afternoon(+122) to engage the Taliban during their weekly leadership luncheon meeting we are talking a 2" shift at 50m... I hope they fix it but there are so many things that effect marksmanship, I feel this issue really is an extreme use case, ...pun intended. :) That being said, again fix it, but I won't be selling my EOtech anytime soon.​
 
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