Do I need a riser for Eotech or Bushnell

Toddler · Jan 9, 2013

Hi,

I'm planning to video why a lot of people have a good reason for buying a military style civilian weapon, so I have a couple of 15-22's, and ordered an Eotech XPS2-0 for one of them. I will order a TRS-25 also.

The rifles have Magpul flip up sights, and I'd like to know if I need a riser to get co-witness or lower 1/3 co-witness with these sights. I'd like to set the Eotech rifle up for absolute co-witness, and the Bushnel rifle for lower 1/3 co-witness.

Will something like this work with the Bushnell? Amazon.com: UTG Low Profile Riser Mount with 13 slots: Sports & Outdoors

Thanks,
Todd

cyphertext · Jan 9, 2013

You will need a riser for the TRS-25 for absolute co-witness, but I don't remember what height off the top of my head. I think it is 1/2"....

ESW · Jan 9, 2013

You need a bit more than a 1/4" riser if you want 1/3 co-witness on the EOTech. I have an XPS 2-0 on my m&p 15x but I have an iron front post so it's much more neccassary to get the front sight out of my sight picture. Since they are flip up sights you do not a riser but to co witness you will. Larue and YHM make one that fits it very well. I have both. The YHM is on my 15x now and it's rock solid and only about $35 to $40.

ESW · Jan 9, 2013

Toddler said:
Amazon.com: UTG Low Profile Riser Mount with 13 slots: Sports & Outdoors

That is too high for EOTech, but i'm not sure on your other site.

megsxr750 · Jan 9, 2013

I have the UTG medium riser for my Bushnell TRS-25.

les strat · Jan 9, 2013

Pretty sure the only line of Eotechs that do not need a riser for lower 1/3 is the EXPS3 line. They come with a QD mount that sets it up perfect on an AR.

Mine is an EXPS3-4

Toddler · Jan 9, 2013

ESW,
Are you saying the UTG low riser is too high because .5" rise will give something more like lower 1/3 co-witness with the XPS2-0 and MBUS sights? Sounds like I need some type of riser, but less than .5" ? ? ? YHM is out of everything, but they say .5" rise too.
Color me confused.

Megsxr750, does the medium riser give you lower 1/3 co-witness?

Thanks guys,
Todd

Toddler · Jan 9, 2013

les strat said:
Pretty sure the only line of Eotechs that do not need a riser for lower 1/3 is the EXPS3 line. They come with a QD mount that sets it up perfect on an AR.

I had seen that the EXPS3 would give lower 1/3, but I figured I'd save $150 and get the XPS2-0. Especially since I wanted to set the Eotech up for absolute co-witness.

I want to set the rifle with the Bushnell TRS-25 on it up for lower 1/3 co-witness.

Thanks,
Todd

cyphertext · Jan 10, 2013

Toddler said:
I want to set the rifle with the Bushnell TRS-25 on it up for lower 1/3 co-witness.

We set my son's rifle up for lower 1/3 witness originally and had to change it. The LED that projects the dot is in the way if you try to go for lower 1/3. We had to go with absolute with the TRS-25.

sound wave · Jan 10, 2013

Toddler said:
I want to set the rifle with the Bushnell TRS-25 on it up for lower 1/3 co-witness.

Thanks,
Todd

the medium UTG mount (0.83") will give absolute. the high UTG mount (1") will give lower 1/3.

as cyphertext said, the area where the beam emits from at 5:00 blocks part of the front sight and it is distracting at first. i got used to it.

ESW · Jan 10, 2013

Toddler said:
ESW,
Are you saying the UTG low riser is too high because .5" rise will give something more like lower 1/3 co-witness with the XPS2-0 and MBUS sights? Sounds like I need some type of riser, but less than .5" ? ? ? YHM is out of everything, but they say .5" rise too.
Color me confused.

Thanks guys,
Todd

The YHM-220 is .300 not .500. I think the LaRue is something like .285.

.500 riser would be much lower in the sight window or possibly off the bottom of the site. these EOTech riser are very short.

ESW · Jan 10, 2013

EOTech Riser [YHM-220] - $46.00 : YHM, Yankee Hill Machine Co., Inc. | Makers of High Quality Firearms, Accessories & Sound Suppressors, Makers of High Quality Firearms, Accessories & Sound Suppressors

Try googling YHM-220, you'll find them. I bought one several months ago. I'm sure there are plenty from various vendors. Obama is not planning to use "Executive Order" to skirt the 2nd amendment and ban risers ~ Wait, how knows maybe he is- flipping communist. Mad face here < > I digress.

Kayback · Jan 10, 2013

I thought the Eotech was designed to be used flat on the rail? I will admit the least Eotech I used was about 3 years ago because I am an Aimpoint fanboy.

KBK

Toddler · Jan 10, 2013

Thanks Guys,

Cyphertext, you said you had to change the height of the Bushnell on your son's rifle.
Did you lower it to have absolute co-witness, or does the LED emitter block even more of the site set up that way?

If the Bushnell works better in absolute co-witness with the Magpul sites, maybe I should mount the Bushnell for absolute co-witness,
and set up the Eotech scoped rifle with lower 1/3 co-witness using the riser ESW pointed me to.

ESW, thanks for letting me know those risers were sold by other places. I thought it was a proprietary item I had to order from them.
There are plenty of places that have them in stock.
Also, I'm getting this stuff to hopefully use in a video response to CNN/Piers Morgan/and other media sources who are providing a lot of misinformation to the public. Even got a simple 4x32 Bushnell scope for my Marlin 880, and now I have to figure out how to mount that as well. (Can you tell I'm not an optics guy?)
Todd

cyphertext · Jan 10, 2013

We went lower for absolute. His rifle is set up with the magpul BUS, both front and rear, and the TRS-25 on the riser.

Soundwave is correct. The .83" riser is the one you need for absolute. I bought all three sizes and the .5" and the 1" are back in the packages in the spare parts box.

Toddler · Jan 10, 2013

Thank you. I'll get the medium UTG riser.

Last question on the Bushnell rifle. Will the short riser be enough: Amazon.com: UTG Medium Profile Riser Mount with 3 slots: Sports & Outdoors
or should I get the 5.7" long version? The longer version is actually less $.
Todd

cyphertext · Jan 10, 2013

The short one is enough, but we currently have the longer rail on his rifle. With the Magpul BUS, it currently bridges the receiver and rail by one slot, which I don't like but I already had the rail and just haven't made it back over to the store to pick up the short riser. I think it is a personal preference though.

Locked-N-Loaded · Jan 10, 2013

I use the UTG Leapers 3 Slot Angle Mount QD System (MAD0340) on the TRS-25 which is 1.03" tall and I have lower 1/3... love the mount and the fact it is QD so I can remove quick and use BUIS and it is a minimal mount with just enough slots for the TRS-25. They cost under $15.

Toddler · Jan 10, 2013

Thanks, that one does look cool, but I actually ordered the short one from optics planet already.
This is becoming an expensive project !

Locked-N-Loaded · Jan 10, 2013

I like it as it allows for a 45* mount also so later on down the line, that mount could serve double duty under a scope for a 45* reflex I have.

Do I need a riser for Eotech or Bushnell

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