Optics question

lsu2868

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Sorry if this is a stupid question but, If I put and optic sight on my 15-22, do you loose the use of the built in iron sight? I guess it doesn't matter but just curious. Wasn't sure if the new optics would block the sights path. Thanks.
 
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What Billy said. There are ways and means of using the standard sights with both red dots and magnified optics, it all depends on your preference and the overall use of the rifle.

Tell us which sight you looking at and we can give a better answer.

For a non magnified red dot there are ways of keeping the irons useable while having the dot as well. Either what is called an "absolute co witness" where the red dot and the irons are all in the same plane, but the irons obscure some of your red dot sight, or a more popular "lower 1/3 co witness" which means your irons appear in the lower 1/3rd of the field of view of the optic. You can still use them if you need to, but they are not blocking your view.

There are certain parts needed to get either system to work, but they can be done.

Things get complicated by magnified optics, but there are also ways around that.

KBK
 
To be honest I am just now starting to look at the optics and haven't decided which one to go with. I was just gathering info to maybe help make a decision. This is my first experience with optics and all. I just wasn't sure if there is really still a need to be able to view the iron sights if you had optics mounted or if it was good to have both available pending on what situation or scenerio you might be in.
 
My two cents, for whatever it's worth, is that on a 15-22 a decent red dot is ideal. Especially one with a small dot. Why? Assuming you can actually see the target at something up to 100 yards away, you'll probably be able to shoot very nice groups up to that distance with a red dot. The only advantage I've found with a magnified scope is that you can see your "hits" on the target when you're shooting, and therefore get the instant feedback to make corrections as needed. I have a Primary Arms red dot on my 15-22 and love it. Let's be realistic...15-22's are plenty accurate, but they're not tack drivers at most distances over 100 yards anyway. Edited to add: With a red dot and a proper mount, you can still keep your iron sights on the gun and either reserve them for "emergencies" or use them together - your choice.
 
My two cents, for whatever it's worth, is that on a 15-22 a decent red dot is ideal. Especially one with a small dot. Why? Assuming you can actually see the target at something up to 100 yards away, you'll probably be able to shoot very nice groups up to that distance with a red dot. The only advantage I've found with a magnified scope is that you can see your "hits" on the target when you're shooting, and therefore get the instant feedback to make corrections as needed. I have a Primary Arms red dot on my 15-22 and love it. Let's be realistic...15-22's are plenty accurate, but they're not tack drivers at most distances over 100 yards anyway. Edited to add: With a red dot and a proper mount, you can still keep your iron sights on the gun and either reserve them for "emergencies" or use them together - your choice.

The red dot is what I was leaning towards so your answer basically confirms what I wanted. There are so many choices and it's not like I am going on a "mission" or anything and need something extravigant. Just for the range. Thanks everyone for you help and any more input is welcome.
 
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Just arrived today. Have it on a UTG medium riser.
 
You can put a carry handle rear sight on it, and a rail on top of the carry handle for whatever you want to put on there.

That way, you can use iron sights and a scope or reflex sight.
 
You can put a carry handle rear sight on it, and a rail on top of the carry handle for whatever you want to put on there.

That way, you can use iron sights and a scope or reflex sight.

I had considered that as well.
 
You can get a scope and leave your iron sights on. You won't see the iron front sight in the scope. I's too close and you won't even see the shadow through the scope.
 
Sorry if this is a stupid question but, If I put and optic sight on my 15-22, do you loose the use of the built in iron sight? I guess it doesn't matter but just curious. Wasn't sure if the new optics would block the sights path. Thanks.

I'm in the same boat as you my friend. I never really owned/purchased any optics, but recently caught the bug. :D I'm like you, no 007 missions, but I think it would be cool to have sites & scope.

Not to hi-jack your thread, but does anyone know if you have to use a scope riser to use the stock sites? Also, at the end of the day, I'm sure it is preference, but is it any easier or convenient to have all site working together, or seperatley? I.e. front & rear sites line up with scope, or front & rear line up seperate from scope, & scope works on it's own?
 
I'm in the same boat as you my friend. I never really owned/purchased any optics, but recently caught the bug. :D I'm like you, no 007 missions, but I think it would be cool to have sites & scope.

Not to hi-jack your thread, but does anyone know if you have to use a scope riser to use the stock sites? Also, at the end of the day, I'm sure it is preference, but is it any easier or convenient to have all site working together, or seperatley? I.e. front & rear sites line up with scope, or front & rear line up seperate from scope, & scope works on it's own?

As others said, it depends on your "scope" or "optic". A non-maginifying red dot sight with riser should work fine with your stock iron sights, but it will make the stock sights useless. An EOTech holographic sight can be used with the MOE edition pull-up sights (or Mbus Gen 2) with sights up or down. When the sights are up, they perfectly co-witness with the dot sighted zero at 50 yards. When you use a 3X flip-to-side maginifier with a EOTech or just a stand alone magnifying dot sight, you will see a shadow of your sight as partial obstruction on the bottom 1/5-1/3 through the magnifying scope, but it will be mostly out of focus. I rarely pull the sights down with the EOtech alone, but pull them down for 3X maginifier. Using a stock sight, it obstuck even more and fairly difficult to use with 3X maginifier. You can use a riser for magnifying dot scopes, but that will make your iron sight (stock or pull up) completely useless.

For a rifle scope with maginification, stock iron sights rarely work without a tall riser for the scope. You can add a carrying handle and add the dot sight or scope on the top of handle, but it will make your AR quite heavy. Frankly, it depends on what you want to shoot and the purpose of your AR15-22 (plinker/trainer or survival/home-defense).
 
I'm in the same boat as you my friend. I never really owned/purchased any optics, but recently caught the bug. :D I'm like you, no 007 missions, but I think it would be cool to have sites & scope.

Not to hi-jack your thread, but does anyone know if you have to use a scope riser to use the stock sites? Also, at the end of the day, I'm sure it is preference, but is it any easier or convenient to have all site working together, or seperatley? I.e. front & rear sites line up with scope, or front & rear line up seperate from scope, & scope works on it's own?

If I'm reading you right. You can use a scope alone and "loose" your iron sights. Can't use both at the same time unless you add a riser with a "see through" center riser and look under the scope. That can/will put the scope too high. Remember,you want to keep any sight as close to the barrel as possable for better sighting.

You can use an HG or red dot along with your iron sights. You can use seprate or co witnessed together. Using the front sight and Dot for full co witness or 1/3rd co witness leaving the rear sight down...
 
As others said, it depends on your "scope" or "optic". A non-maginifying red dot sight with riser should work fine with your stock iron sights, but it will make the stock sights useless. An EOTech holographic sight can be used with the MOE edition pull-up sights (or Mbus Gen 2) with sights up or down. When the sights are up, they perfectly co-witness with the dot sighted zero at 50 yards. When you use a 3X flip-to-side maginifier with a EOTech or just a stand alone magnifying dot sight, you will see a shadow of your sight as partial obstruction on the bottom 1/5-1/3 through the magnifying scope, but it will be mostly out of focus. I rarely pull the sights down with the EOtech alone, but pull them down for 3X maginifier. Using a stock sight, it obstuck even more and fairly difficult to use with 3X maginifier. You can use a riser for magnifying dot scopes, but that will make your iron sight (stock or pull up) completely useless.

For a rifle scope with maginification, stock iron sights rarely work without a tall riser for the scope. You can add a carrying handle and add the dot sight or scope on the top of handle, but it will make your AR quite heavy. Frankly, it depends on what you want to shoot and the purpose of your AR15-22 (plinker/trainer or survival/home-defense).

Thanks Go Vtec! This answer is what I was looking for. I think I want a new 15-22 for the range, but I wouldn't mind barely missing a few squirrels either :D I do love the Magpul pop up sights, and may get the basic model, and buy them seperate. I like the idea of the EOTech holographic option, so I am going to do some more research on them. Thanks again and kind regards. As always, appreciate the knowledge!
 
I believe what I am speaking of in my prior post is a true co-witness, if that means your front & rear sights line up with the red dot on the optic. I like the Magpul pop up sights, and considering an EOtech red dot. Anyone know if a riser would be needed in my case to make this set-up a co-witness? If I do need a riser, what height should I shoot for?
 
I don't believe you need a riser for an Eotech. As I understand it it was designed to work with the AR-15's sight plane which is ~2.5" over the bore. The Eotechs, as I understand it, as this high already without riser.

Shorter dots like the Aimpoint Micro, TRS-25, Primary Arms Micro, Aimpoint Comp series and the like are all less than that and to get them in the right height to use them as the AR-15 was designed require a riser.

Just remember there is nothing magical about a "co-witness" all it means is you can see the sights through the other sight. It does not help with your shooting. If it is an absolute co witness it may speed up the transition from a broken red dot sight to your iron sights, but that's only marginal. The absolute co witness also clutters your field of view.
 
I believe what I am speaking of in my prior post is a true co-witness, if that means your front & rear sights line up with the red dot on the optic. I like the Magpul pop up sights, and considering an EOtech red dot. Anyone know if a riser would be needed in my case to make this set-up a co-witness? If I do need a riser, what height should I shoot for?

You should be fine just sitting the EOtech on the rail. They are made to keep low. Your putting a $500.- $1000. scope on a $399. 22 ?
 
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