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Go Back   E46Fanatics > Everything Else > The Off-Topic > Gun Talk

Gun Talk
Are you a gun fanatic as well? If so, you'll want to talk to other owners about what you own in this forum.

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Old 06-29-2011, 03:10 PM   #1
Adam@Euro-Spec
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Question about red dots

I just ordered a mp 15-22 and am going to order a micro red dot for it.the mp 15-22 has magpul mbuis so my question is am I better off getting a primary arms micro dot that lower 1/3 co witness or paying the extra to get a vortex sparc that allows for 1/3 co witness or absolute co witness.

I guess whats better to get 1/3 co witness or absolute. I don't really have a chanceto test them out first so I'm looking for some personal preferences but I know it varies person to person and wish I could try them both out but oh well.

So if its not real coherent hard to type from my phone.

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Old 06-29-2011, 03:58 PM   #2
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Originally Posted by Adam@Euro-Spec View Post
I just ordered a mp 15-22 and am going to order a micro red dot for it.the mp 15-22 has magpul mbuis so my question is am I better off getting a primary arms micro dot that lower 1/3 co witness or paying the extra to get a vortex sparc that allows for 1/3 co witness or absolute co witness.

I guess whats better to get 1/3 co witness or absolute. I don't really have a chanceto test them out first so I'm looking for some personal preferences but I know it varies person to person and wish I could try them both out but oh well.

So if its not real coherent hard to type from my phone.

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This is my thought - it doesn't matter unless you are going to have the buis in the up position at all times. I have the lower 1/3 co-witness. Why? Because that's just how it worked out.

The reality is that the buis are just that - back up iron sights that are meant to be used as a back up.
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Old 06-29-2011, 08:01 PM   #3
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Fantastic reference video. I prefer lower 1/3 myself.
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Old 06-29-2011, 09:33 PM   #4
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Magpul MBUS make terrible full-time sights, but they're good as backup sights. The purpose for co-witness is to still be able to use the sights if the optic goes down, without needing to remove the optic. There are two schools of thought when it comes to shooting with co-witness. One is to have the sights constantly up, and the other is to have the sights constantly down. With the sights constantly up and in an absolute cowitness, you take away the biggest advantage you had with the RDS- speed. You are now looking through 3 sight planes instead of two or one - rear, dot/middle, front.
I would push you towards lower 1/3. If you are just going to keep this on a .22, then it really doesn't make a whole lot of difference what you get if you aren't going to abuse it. However, the PA looks like it has a 1yr warranty. Vortex backs all of their products for life. Something to think about.
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