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Posted: 7/27/2006 5:03:22 PM EDT
| Has Eotech solved this problem or are they still having some that cant? |
| I have 2 512's that I purchased brandnew from different dealers along with EoTech "goose neck" mounts for A2 rifles. I had no problems with either of them "canting". My only complaint is that after cleaning the rifles(removing upper from lower) the EoTechs lose their zero, not by much but are off none the less the next trip to the range. I have limited my cleaning to not taking the rifles completely apart after each range trip and this has solved the "loss of zero" problem. |
| I just received my 552 back from the factory when the July 1 recall started for the canting problem. Eotech fixed the problem with my 552. It sits flat on my RRA dominator mount as well as my RRA flattop. It took a little while to solve the problem with my mount, but Eotech's customer service was fantastic all the way through. |
Are they Rev F's? |
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I'm getting ready to buy a 3x magnifier so I moved the eotech from the flattop upper receiver to the front handguard to make room for the 3x. I heard about this canting problem, but I never had this problem with my eotech when mounted on top of the receiver. However, when I move the eotech forward onto the handguard-half on the receiver and half on the handguard- It cants down to the right. It's weird that it doesn't cant when its on the flattop but cants when I move it up  Is this normal? |
What kind of upper do you have the Aimpoint mounted on ? Do the iron sights co-witness with the Aimpoint red dot ? Where does the iron sight picture sit inside the Aimpoint, lower 1/4, 1/3, dead center ? 
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I had 2 552's rev F's that had the canting problem. Kept sending it back to Eotech (3 times) before they were bought by L3 and they all came back with the canting. Sold one off and bought an Aimpoint M2. NEver had to look back! Great service from Eotech...but thats no good if you cant get it to mount properly. I use an Arms throw lever mount on mine. |
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It has been an issue with EOTech, but I wonder if a lot of times the upper receivers are out of spec? My earlier 552 Rev F is fine. My roommate ordered one a few months back, and his canted on all of our rails/uppers. He sent it back, and it still cants on his CMT upper, but is fine on my KAC and LMT stuff, as well as the rail on his Beretta Storm. Our old roommate had the same problem...the culprit again was a CMT upper. I have a much older CMT upper with which I can recall no problems using the EOTech. It might be that CMT, which makes uppers for plenty of people, put out a huge batch of shitty uppers. I'm not saying that EOTech is blameless, but just that the sight should be mounted on other rails to be sure before putting all the blame on EOTech. |
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The whole unit is visibly canted. This is a function of rail size and the, erm, unique interface with the rail which the Eotech has. I dug out a variety of dodgy old rails, measured them (with a micrometer) and tried the Eotech. If the rail is undersize then the unit will lean to the right (viewed from behind) whereas an oversize rail will cause the unit to lean to the left. Even the variance allowed within the milspec rail will cause this although the amount of lean is so small that you have to look quite hard to find it. If you look at the rail interface on the Eotech it only rests on the angled portion of the rail - it doesn't touch the flat upper section. If the rail is slightly over or under sized then the point where the eo touches the angled section will be higher or lower, causing the cant. |
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Email from Eotech: > Please keep in mind that all we are doing is increasing the width of the > base width allowance in our sight by a thousandth of an inch or so. This > is to accommodate a greater variety of rail tolerances out on the market > today. If there are issues with the rail specs, the modification will > not resolve the issue. The cant is a purely aesthetic factor that does > not affect the accuracy or security of the sight on the rifle. |
From the old thread ... archive.ar15.com/forums/topic.html?b=3&f=18&t=272576&page=1  
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| Looks like a TV set howroomI also went Aimpoint due to using it in the M68 setup on a M4. Happyland ever after. |
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