Sight Question for AR guys

• Mar 6, 2017

• #1

arbud

Active Member

Jan 27, 2008

809

Towson

Just bought a Delton 316H from an IP.
I want to put either a red dot on it or just a folding buis. It comes as a flat top with no rear sight and the standard post in the front.
Do either of them have to be higher on the rail to be able to comfortably lean my cheek against the rifle and see or can I use whatever regular height is.
I bout a scope for an AR once and the rings were too short. I could not squish my face enough against the rifle to see through the scope.
Am looking for one of these kinds of sights.

 

• Mar 6, 2017

• #2

GoldGunsGirls

Active Member

May 30, 2012

230

Rockville

Most red dots have "infinite" eye relief. You can have them anywhere along the flat top. In terms of cheek weld, it just depends on the stock and how it fits with your face and cheek bones. Most people want a small riser under their dot when using a mil spec stock. Look at the Holosun dots. They come with both a low mount and high mount included in the package so you can test both out and use the one you prefer.

The BUIS you would just put in the rear-most picatinny slot. You shouldn't have any eye relief issues.

 

• Mar 6, 2017

• #3

RDF5186

Active Member

Feb 26, 2012

426

HARFORD CO

My Vortex Sparc cane with different size risers to accommodate different size users. Plus a lifetime transferable warranty and great customer service.


Sent from my iPhone using Tapatalk

 

• Mar 6, 2017

• #4

F

F-Stop

Ultimate Member

Feb 16, 2009

2,494

Cecil County

When looking at optic mounts, view images of Absolute and lower 1/3 to see what height and sight picture you like. That is if you run both buis and optic.

 

• Mar 6, 2017

• #5

outrider58

Cold Damp Spaces

MDS Supporter

Jul 29, 2014

50,186

Here, sometimes. There, other times...

I usually mount my red dots either all the way forward on the upper(and do not bridge between upper and handguard) or centered over the ejection port.
As GGG said, BUIS usually goes all the way back on the last couple slots to the rear on the receiver.

 

• Mar 6, 2017

• #6

71Chevelle427

Ultimate Member

MDS Supporter

Jan 19, 2015

3,304

B'More County, Maryland

I'll be listing a Vortex Strikefire II red dot sight on here tomorrow, soon after I get to work and resize the pictures. It is the low mount, not the cantilever mount, but I had it on a 3/4" riser, which actually made it co-witness with my flip up front and rear rail mount Magpul buis, which I'd also probably sell...

For some reason, I can see a 20 dollar red dot perfecty, but not a Vortex or EOtech, or any other mid priced decent red dot...from what I have read, I probably have astigmatism

 

• Mar 6, 2017

• #7

2

2nd=Good+Substantial

Ultimate Member

Mar 17, 2012

1,632

The Hereford Zone

Magpul rear MBUS is good to go with F marked front.

A 15mm / .59" lever riser puts a standard Bushnell TRS-25 at the right height for co-witness.

 

• Mar 6, 2017

• #8

MacGuns

Ultimate Member

Jan 14, 2013

1,899

Chester

Here is my setup with the Holo Sun RDS. The BUIS co-witness perfectly with the red dot.

 

• Mar 6, 2017

• #9

dreadpirate

Ultimate Member

Mar 7, 2010

5,521

Cuba on the Chesapeake

outrider58 said:

I usually mount my red dots either all the way forward on the upper(and do not bridge between upper and handguard) or centered over the ejection port.
As GGG said, BUIS usually goes all the way back on the last couple slots to the rear on the receiver.

Click to expand...

+1

 

• Mar 6, 2017

• #10

dreadpirate

Ultimate Member

Mar 7, 2010

5,521

Cuba on the Chesapeake

If you want to mount a scope, get a Burris PEPR scope mount shown here.

 

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• Mar 6, 2017

• #11

dreadpirate

Ultimate Member

Mar 7, 2010

5,521

Cuba on the Chesapeake

MacMoov said:

Here is my setup with the Holo Sun RDS. The BUIS co-witness perfectly with the red dot.

Click to expand...

Awesome photography.

 

• Mar 6, 2017

• #12

K

Kagetsu

Active Member

Feb 4, 2009

451

arbud said:

Just bought a Delton 316H from an IP.
I want to put either a red dot on it or just a folding buis. It comes as a flat top with no rear sight and the standard post in the front.
Do either of them have to be higher on the rail to be able to comfortably lean my cheek against the rifle and see or can I use whatever regular height is.
I bout a scope for an AR once and the rings were too short. I could not squish my face enough against the rifle to see through the scope.
Am looking for one of these kinds of sights.

Click to expand...

Okay, all the things above seems a bit confusing to me. So, it's a standard AR with a fixed post front sight? I have three Aimpoints. A PRO on a basic Colt. The riser that came with it is fine. The Magpul MOE colt also with the fixed front sight, has the tall, "above line of sight", the boxy one, Larue QD, to just look over the sightpost,,, and a magpul BUIS. The complete flat top, also T2, has the shorter, "line of sight" that matches the the Troy folding BUIS sights.
https://tse4.mm.bing.net/th?id=OIP.ujDfCl7ANpLRRIAPGvKA7gEsDH&pid=15.1

The Eotechs are "line of sight", so they are on AR's without fixed front sights and have folding Troy BUIS.

 

• Mar 7, 2017

• #13

outrider58

Cold Damp Spaces

MDS Supporter

Jul 29, 2014

50,186

Here, sometimes. There, other times...

MacMoov said:

Here is my setup with the Holo Sun RDS. The BUIS co-witness perfectly with the red dot.

Click to expand...

We are not far from each other going by your trust engraving. Do you shoot at Damascus IWLA?

 

• Mar 7, 2017

• #14

MacGuns

Ultimate Member

Jan 14, 2013

1,899

Chester

dreadpirate said:

Awesome photography.

Click to expand...

Thanks

outrider58 said:

We are not far from each other going by your trust engraving. Do you shoot at Damascus IWLA?

Click to expand...

Yes, I'm typically there every Sunday morning.

 

• Mar 7, 2017

• #15

travistheone

Usual Suspect

Dec 11, 2008

5,600

cockeysville

I believe the front sight can be different heights. traditionally referred to as F height (being the taller height used on shorter uppers). You should consider this. also consider that you can replace the front sight post with different heights.

 

• Mar 7, 2017

• #16

outrider58

Cold Damp Spaces

MDS Supporter

Jul 29, 2014

50,186

Here, sometimes. There, other times...

MacMoov said:

Yes, I'm typically there every Sunday morning.

Click to expand...

I'll stop in sometime and shoot with you maybe. I usually shoot there Friday afternoons once the sun stays up later.

 

• Mar 7, 2017

• #17

MacGuns

Ultimate Member

Jan 14, 2013

1,899

Chester

Sure, I will just look for the Scary Clown and introduce myself

 

• Mar 7, 2017

• #18

outrider58

Cold Damp Spaces

MDS Supporter

Jul 29, 2014

50,186

Here, sometimes. There, other times...

MacMoov said:

Sure, I will just look for the Scary Clown and introduce myself

Click to expand...

I'll be wearing big floppy shoes and my red squeeky nose.

 

• Mar 7, 2017

• #19

L

lazarus

Ultimate Member

Jun 23, 2015

13,757

outrider58 said:

We are not far from each other going by your trust engraving. Do you shoot at Damascus IWLA?

Click to expand...

Huh, I've actually been thinking of joining there. Been once, I liked it. I just have to find the spare time, I know a few members so I imagine I could get a sponsor.

On mounts, my 2 cents, but a PEPR is built really well, but it is heavy. A little over 8 ounces and also $100. Aerotech ultralight is also a cantelivered mount, it weighs 3 ounces and comes in at about $70.

Just a thought.

 

• Mar 7, 2017

• #20

Mr.Blue

Living In A Bizarro World

Nov 21, 2011

1,523

Miserable in MD

I have my Aimpoint mounted on my Daniel Defense V1M4 (has front post sight and fixed rear sight), using a LaRue quick detach mount. It co-witnesses with my sights. Call LaRue and they will help you. They are expensive, but the best. Their customer service is great too.

 

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