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Basic
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Posted: 7/6/2009 5:59:55 PM EST
[Last Edit: 7/6/2009 6:01:50 PM EST by lamarbrog]
What are the differences?

Which one has better battery life?

What should I expect for battery life? I've heard it is quite a bit less realistically than is actually advertised.

What I'm seeing is that the 517 has the buttons on the side, so it is easier to use with a magnifier.
It also has a strangely shaped front... It is so you can mount it farther forward?
Basic
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Link Posted: 7/6/2009 6:26:06 PM EST
The battery life is the same. The only differences are as you said, the shape of the front and the buttons on the side. I bought the 512 to save a little money but wish that I got the 517 because I am now planning on adding a magnifier.
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Link Posted: 7/6/2009 6:29:04 PM EST
517 sits, I think, 7mm higher and is set up for 1/3 co-witness with BUIS. 517 is clearly better choice as of now.
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Link Posted: 7/6/2009 6:31:04 PM EST

Originally Posted By LX200:
517 sits, I think, 7mm higher and is set up for 1/3 co-witness with BUIS. 517 is clearly better choice as of now.

Why does everyone like 1/3 co-witness so much?

It seems having the irons centered would be better... The whole "eye wants to center things" everyone preaches about aperture sights would come into play here, right?
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Link Posted: 7/6/2009 8:23:16 PM EST
You don't want 1/2 your view through the finder blocked by iron sights. Having the top 2/3 clear helps you see targets and get them in the fiield of the optial sight.
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Link Posted: 7/6/2009 8:29:03 PM EST

Originally Posted By LX200:
You don't want 1/2 your view through the finder blocked by iron sights. Having the top 2/3 clear helps you see targets and get them in the fiield of the optial sight.

I see... That makes sense. You'll want more space dedicated to the main HWS.

I'm still in the irons mindset...
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Link Posted: 7/6/2009 9:39:14 PM EST
Is there a way to get a raised base for 1/3 co-witness with an Eotech 552?


I know the 557 has had some major problems... So it is out of the question.

An Eotech 552 is similar, just without the 7mm riser.


I kind of want to keep my night vision options open.
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Link Posted: 7/6/2009 11:48:13 PM EST
The 517 is curved and raised to fit over standard handguards without a mount.

If you want a lower 1/3 co-witness with a 512/552/etc, you can buy a mount like the one from LaRue. This also gives you the QD option which I think is nice for optics.
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Link Posted: 7/7/2009 12:41:14 AM EST
Originally Posted By Spyw:
The 517 is curved and raised to fit over standard handguards without a mount.

If you want a lower 1/3 co-witness with a 512/552/etc, you can buy a mount like the one from LaRue. This also gives you the QD option which I think is nice for optics.


+1 on the LaRue mount for lower 1/3 with a 512/552.

I have no problem with absolute co-wit, however.
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Link Posted: 7/7/2009 3:41:48 AM EST
[Last Edit: 7/7/2009 3:43:29 AM EST by Captains1911]
Originally Posted By lamarbrog:

Originally Posted By LX200:
517 sits, I think, 7mm higher and is set up for 1/3 co-witness with BUIS. 517 is clearly better choice as of now.

Why does everyone like 1/3 co-witness so much?

It seems having the irons centered would be better... The whole "eye wants to center things" everyone preaches about aperture sights would come into play here, right?


+1, I prefer the co-witness. I use a Troy rear BUIS and a fixed FSB, and with the Trpy folded down, I don;t even notice the front sight.

ETA: I have a 512 and have not experienced a battery drain issues.
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Link Posted: 7/7/2009 7:56:47 AM EST
[Last Edit: 7/7/2009 7:57:14 AM EST by lamarbrog]

Originally Posted By Hero:
Originally Posted By Spyw:
The 517 is curved and raised to fit over standard handguards without a mount.

If you want a lower 1/3 co-witness with a 512/552/etc, you can buy a mount like the one from LaRue. This also gives you the QD option which I think is nice for optics.


+1 on the LaRue mount for lower 1/3 with a 512/552.

I have no problem with absolute co-wit, however.

Does the LaRue mount allow you to have it mounted partially over the handguards?

Is there a specific item number or name for this mount? I know LaRue makes a lot of stuff.
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Link Posted: 7/7/2009 8:05:29 AM EST
Originally Posted By LX200:
517 sits, I think, 7mm higher and is set up for 1/3 co-witness with BUIS. 517 is clearly better choice as of now.


This
Basic
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Link Posted: 7/7/2009 8:47:20 AM EST
Originally Posted By lamarbrog:

Originally Posted By Hero:
Originally Posted By Spyw:
The 517 is curved and raised to fit over standard handguards without a mount.

If you want a lower 1/3 co-witness with a 512/552/etc, you can buy a mount like the one from LaRue. This also gives you the QD option which I think is nice for optics.


+1 on the LaRue mount for lower 1/3 with a 512/552.

I have no problem with absolute co-wit, however.

Does the LaRue mount allow you to have it mounted partially over the handguards?

Is there a specific item number or name for this mount? I know LaRue makes a lot of stuff.

http://stores.homestead.com/Laruetactical/Detail.bok?no=33

LT-110

You can buy the mount and an EOTech 552 for $600 directly from LaRue.

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Link Posted: 7/7/2009 9:37:04 AM EST
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Link Posted: 7/9/2009 1:54:31 PM EST
I like eotechs that use AA bats, they are available everywhere
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