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7/8/2008 8:58:35 PM EDT
Is the 516.A65 taller than a 512.A65?

I picked up a 516 today (my first EOTech) and it seems to be very tall compared to the front sight (My BUIS is not here yet). I see a lot of co-witness photos on here and there is a lot less of the front sight visible in my EOTech's glass than most photos I see (at least when the rifle is held level).

FWIW, I got a screaming deal on the EOTech 516 ($390) so I am, obviously, pretty happy. But hving never had another one, I don't know what is normal.


7/8/2008 9:48:34 PM EDT
[#1]
Yes. I think it's ~7mm higher.
7/9/2008 12:55:21 PM EDT
[#2]
NoAim in correct.  The 516 has a built riser so it sits higher.  It'll put your irons in the lower third of the window/lens.

I've had zero problems with 3000+ rounds under it.

$390 is a great deal by the way.
9/19/2008 4:11:23 PM EDT
[#3]
I like the idea of the 516 , but I'm wondering about it's return to zero when removing & reinstalling. The 512 only has 1 MOA return to zero when not using a QD riser/mount, and I'm guessing the 516 will be the same. I guess for CQB, that's nothing to complain about, but I'd still like something a little closer. What is an ADM mount's return to zero? Unfortunately, it doesn't sound like a 516 can be used with a riser/mount.

I called ADM. I didn't get the person's name, but he said their EOTech mount will raise "about 3/8" of an inch". I could be wrong on hearing "about" though. Still, .375, or something around that, is one heck of a jump. It doesn't sound like it would be usable with the 516. The 516 raises .275 over the 512. Couple that with a Larue at .275, a YHM at .300, or an ADM at .375, and that optic window is getting really up there. Sounds like too much to co-witness at all. What do you think?

I don't like the absolute co-witness. I have zero real experience with it, but the one single time I spent 1 minute looking through a 512 with a FSB, I didn't really like the FSB obstruction. Have you looked through a 516 on an upper with a standard F-marked FSB? I'm wondering if the .275 over the 512 is enough for me. Admittedly, I'm very used to using magnified optics on a bolt-action rifle, something that has zero obstruction. Perhaps the optics with an FSB is simply something I will have to get used to.

So, it sounds like it's a 516 and live with the 1 MOA return to zero, or a 512 with an ADM mount. That is if it has a tighter return to zero. If not, then there is no real reason to go 512 over the 516.
9/20/2008 1:11:22 PM EDT
[#4]
Does anybody have the GG&G Accucam for the EOTech. They are quoted as saying, "In tests, the EOTech Accucam Locking Lever System has shown to be repeatable to less that 1/2 MOA."

What have your experiences been?  Perhaps the Accucam and the 516 could the hot setup.
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