My first red dot. Mounting location?

[BigWaylon]

Yours definitely looks low. If you see the one I posted, it's set for absolute cowitness. If I was to go with 1/3 cowitness, it would be slightly higher.

You definitely need a riser of some kind.

Similar discussion here.

Also...most people will tell you to keep the mount on the upper receiver, which means yours looks 1-2 notches too far forward, not too far back. However, with the two ring mount, it would be hard to use that red dot and a read BUIS at the same time. Unless they make a cantilever riser mount that would work for you?

-Greg

 

[USMCHEROS]

Here's how I got my EoTech G33 magnifier & 3-2 tan sight. I got my magnifier on the far end and sight in front of the magnifier.

 

[ChattanoogaPhil]

Sure that's true? Looking at how the 15-22 is made I'm not so sure. Seems like the barrel is secured as well to the forend as it is to the upper receiver. Relatively speaking (compared to a "real" AR platform) it seems the sight to barrel attacment is a flexi-flyer either way.

Least chance of flex probably being at the very front of the upper receiver / rear of the forend?

It is true that the handguard is sandwiched between the the receiver and barrel nut, but I'm quite sure that the handguard will flex considerably more than the receiver... the further from the receiver the more the potential flex.

 

[tomcatt51]

It is true that the handguard is sandwiched between the the receiver and barrel nut, but I'm quite sure that the handguard will flex considerably more than the receiver...

With the forends (pretty tight fitting, both od and id) end cap in place?

 

[ChattanoogaPhil]

With the forends (pretty tight fitting, both od and id) end cap in place?

Sure. And when the end cap moves enough to touch the barrel, it further complicates things.

 

[Brmprice]

Thought I would report back. Finally got to the range to sight in my new red dot. I took the advice from most and mounted the sight at the front of the receiver and it seemed natural and my old eyes focused great on the dot. Got it sighted in and was very pleased with the setup. Thanks all.


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[RED ZMAN]

So question for you since you are new to these, have you been firing with both eyes open or just one?

I've tried both now that I've got green dots on most of my weapons now, and MUCH prefer both eyes open. Hard to break that decades old habit of closing one eye, but man, I love it.

The rifle goes *Pow*
The gong goes *Ding*

 

[kingfhb]

So question for you since you are new to these, have you been firing with both eyes open or just one?

I've tried both now that I've got green dots on most of my weapons now, and MUCH prefer both eyes open. Hard to break that decades old habit of closing one eye, but man, I love it.

The rifle goes *Pow*
The gong goes *Ding*

The human eye sees the green laser better than the red... the difference in electronics is that the green laser takes a lot more power than the red, so batteries are usually larger to compensate. There's no need to close one eye on a red dot because there's (or shouldn't be) any magnification... same with a holographic. Unless you add a magnifier that is.

It is a hard habit to get out of, since we are young we're taught or see one eye shut every time someone raises a gun or presses it to their cheek. Keep at it though... you'll get used to it. Years of muscle memory are hard to break.

 

[RED ZMAN]

Well, I went for green because I have trouble with red lights on a black background, and green is my favorite color. I also have a mental block with red dots (RED MEANS STOP!), but green is fine (GO AHEAD AND SHOOT!). No battery issues yet, still on the ones that came with them almost 2 years ago.

Sure is more relaxing with both open.

 

[kingfhb]

I agree, I totally prefer the green, and it may be that I can just see green better (same with Night Vision). I didn't even realize the battery thing until I looked this up one day while shopping for a crimson trace laser for a pistol...

"All Crimson Trace products use commonly available powerful, lithium batteries. They provide over four (4) hours of "ON" time for Lasergrips® and Laserguard® models. Batteries for the MVF-515™ line provide a minimum of: six (6) hours for Green and forty-eight (48) hours for Red of "ON" time."

So I researched further and sure enough... green lasers require substantial power as opposed to red lasers.

 

[Brmprice]

I am a relatively new shooter and began with one eye closed shooting pistols. I have slowly been trying to train myself to keep both eyes open with some success at close ranges under 25 feet, but I still tend to go back to one eye at longer distances.

What I liked about the red dot was that it was much easier to keep both eyes open using it vs sighting a pistol.




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[Neumann]

All red dot sights exhibit some degree of parallax. That is, the position of the dot on the target varies with where your eye is relative to the center of the optics, and the distance to the target. More expensive sights, such as Eotech and AimPoint, tend to have better correction. However the virtual image is still projected to about 80 yards, so there will be parallax closer or further even if the correction were perfect.

The further from your eye, the less the effect of being off center becomes, and the easier it is to keep both eyes open. The closer it is, the quicker you eye acquires the dot. It depends on your personal taste and priorities.

Other considerations include interference with iron sights, which are good to have in case the battery dies, and whether you need room to mount a magnifier between your eye and the sight. Magnifiers are nice to have for precision shooting, and have no effect on the zero.

 

[IceStone]

I agree, I totally prefer the green, and it may be that I can just see green better (same with Night Vision). I didn't even realize the battery thing until I looked this up one day while shopping for a crimson trace laser for a pistol...

"All Crimson Trace products use commonly available powerful, lithium batteries. They provide over four (4) hours of "ON" time for Lasergrips® and Laserguard® models. Batteries for the MVF-515™ line provide a minimum of: six (6) hours for Green and forty-eight (48) hours for Red of "ON" time."

So I researched further and sure enough... green lasers require substantial power as opposed to red lasers.

Although this thread is about red dot sights and I don't know if they suffer the same characteristics as a Green Laser, but at one point when I was researching getting the Stream Light TLR-2G with a green laser I noticed in the documentation that it had a temperature range at which the laser would work where as the red lasers had no such range listed. After doing some more research it turns out that green lasers suffer in cold weather and although I would never have problems living in South Florida I can imagine for many it would be a deal breaker.

 

[IceStone]

Anyway, I mount my reflex sight above the magwell with a cantilever mount. I also really like using the Chevron reticle with its size it is easy to pick up, but you also have the fine point which can be used for some good accuracy. It also provides you with ranging benefits.