NEA Co-witness rail and Vortex Sparc on a CZ-858

Hey Satain I think you misunderstood me. I suggested mounting the rear BUIS on the NEA railed stock adapter (with the tiny rail), NOT the NEA cantilever mount. That for sure is level with NEA upper hg and barrel clamp rail as I've run that config.
Did not misunderstand you. There restock adaptor rail sits higher than there handguard rail level. Hence why I never stated the work cantilever mount any were. Although I never tried a gas block flip up front sight as I do know that they are longer than the standard BUIS. It just might fit the bill. Here is a photo to show the different hieght between the 2;
Gas Block BUIS
yhm9584_723_general.jpg

Regular BUIS
CCT-AR-YHM-9627g.jpg

Although a TROY Micro rear sight might also work 2;
1966.jpg
 
Did not misunderstand you. There restock adaptor rail sits higher than there handguard rail level. Hence why I never stated the work cantilever mount any were. Although I never tried a gas block flip up front sight as I do know that they are longer than the standard BUIS.

Interesting, I have not experienced the same thing you have then. For me, everything is nice and level and I'm running regular Yankee Hill BUIS set front and rear. You mentioned the rail on the stock adapter was higher than the handguard's, were you able to take a measurement? I find this odd especially since I haven't had issues.

My current config (playing around with a scout mount):
scoutmount_sml.jpg
 
The NEA parts (railed stock adapter and barrel clamp) are on the same plane. It's possible the handguard rail may be fractionally lower than the other two as it was lowered during revisions, but I can't remember if that lowering happened before or after the clamp and stock adapter were released.

Even if a BUIS was mounted to a rail fractionally lower than the stock adapter, any difference in elevation would be well within the range of adjustment for the front sight post.
 
I tried that and no it doesn't work.
Of course it does, that was the original reason we made the railed stock adapter and Railed barrel clamp. The cantilever mount was an after thought.

I can post up the CMM report to verify the Hand guards, Clamp and stock adapter are all on the same plane.

Troy Industries who buys our products to re sell in the U.S set up their guns that way, as seen at ShotShow back in Jan of this year.
 
The NEA parts (railed stock adapter and barrel clamp) are on the same plane. It's possible the handguard rail may be fractionally lower than the other two as it was lowered during revisions, but I can't remember if that lowering happened before or after the clamp and stock adapter were released.

Even if a BUIS was mounted to a rail fractionally lower than the stock adapter, any difference in elevation would be well within the range of adjustment for the front sight post.
That was probaly the reason why I noticed it. I baught it second hand from the EE and did not like the amount of the front sight post elevation that was needed on it.
Of course it does, that was the original reason we made the railed stock adapter and Railed barrel clamp. The cantilever mount was an after thought.

I can post up the CMM report to verify the Hand guards, Clamp and stock adapter are all on the same plane.

Troy Industries who buys our products to re sell in the U.S set up their guns that way, as seen at ShotShow back in Jan of this year.
No need to as I am loving my cantilever mount ;)
 
Ah okay I see. You could also just ditch the factory sights and mount BUIS on the stock adapter and barrel clamp rail if you go with a taller micro mount, no?

I want to keep the Irons, and just ordered a regular rear stock adapter, hopefully it will drop it down just enough to get a better sight alignment. Plus the aimpoint mount sits to high ( I guess you can cut it down a bit). If it does not feel right with the new adapter, then I will run buis and the mount on the aimpoint instead. Need to get this rifle comfortable for myself, I have tried a few different setups already with no progress in making it feel totaly right.
 
Please post your precise set up

Please post the components of your exact set up.

If we had a list of all of the hang guards and optics that work for a co-witness perhaps there would be less speculation regarding this subject.

Basically, what gear does it take to achieve a co-witness.

RS





Uploaded with ImageShack.us

*Crappy pic and camera. Sorry..
 
@ Romeo Sierra
Post #28 shows the setup I had in mind for a co-witness. It can be achieved several different ways.
Parts for my setup include:
NEA upper handguard
NEA rear stock adapter (regular, not railed)
Aimpoint H1 (no riser)
*all other parts have no bearing on achieving co-witness with this way of doing it.

Satain on post #8 achieves it with the same upper handguard and a Bushnell tr25.

Mambo setup on post# 23 achives this as well. He can explain more in detail the steps he took.

Im not sure how the Sparc setup works.
All look like great ways to have the rifle feel right in terms of the individual shooters preference to the way they shoot.
 
Please post the components of your exact set up.

If we had a list of all of the hang guards and optics that work for a co-witness perhaps there would be less speculation regarding this subject.

Basically, what gear does it take to achieve a co-witness.

RS

There is only one hand guard that allows a co witness.... although some time this year there might be a quad rail ;)
 
Sorry to raise this one from the dead but it showed up in a search and was the most relevant.
Do the Troy MICRO Sights give a clear line of sight with NEA railed stock adapter, upper handguard and/or barrel clamp? Or are they too low and have the same issue as the factory iron sights?
Should I get these or the full size Troy Battle Sights?
 
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Have a TRS25 on my CZ858 and a SPARC on my CSA VZ58 in 5.56. The TRS co-witnesses nicely. You can see your sights through the SPARC, but barely at the bottom. The SPARC is a nice sight, but good luck finding batteries whereas the TRS takes a 2032 which you can get just about anywhere. I have also accidently turned on the SPARC numerous times because of the controls on the side the way they are. The TRS has never let me down and I will probably put one on my most recent VZ58 in 7.62.
 
I've ran both the TRS-25 and the Sparc (which I kept)

I prefer the Sparc mainly do to the warranty. When it fails like all electronic sights do, I can get it replaced. I get a perfect co-witness with the rear sight set at 300 but zeroed for 100 yards. The battery issue is non existent as well because I can order a lifetime worth online should I choose too.

The Bushnell is a nice sight as well, I just prefer the Sparc. I do plan on picking up another Bushnell that will sit on my Ruger 10/22. You can pick them up state side for around $80.
 
Sorry to raise this one from the dead but it showed up in a search and was the most relevant.
Do the Troy MICRO Sights give a clear line of sight with NEA railed stock adapter, upper handguard and/or barrel clamp? Or are they too low and have the same issue as the factory iron sights?
Should I get these or the full size Troy Battle Sights?

You would have to run the buis on the rear cantilever stock mount and barrel clamp rail adapter. The full size may sit to high for a co-witness of optics and irons. :confused:
 
Railed stock adapter? I'm not too concerned with co witness right now. I have the railed adapter with a carbine buffer tube and the NEA upper handguard, my iron sights are useless.
I want a set of good quality folding iron sights, I can't find dimensions anywhere for the Troy Micro or full size.
 
There is only one hand guard that allows a co witness.... although some time this year there might be a quad rail ;)
I must be mistaken the meaning of Co-Witness then but then again here are some pic's of a non-NEA handguard acheving the same resualt's? Say it aint true...
IMG00459-20120114-1723.jpg

IMG00462-20120114-1724.jpg

IMG00464-20120114-1730.jpg

IMG00463-20120114-1729.jpg

d:h:
As far as this computer comando is concerned Co-Witness is some smoke and mirrors. If you have issues with your optic you should just ditch the pig. But then again don't believe me look at the photo off the NEA web site that shows an Czech Army guy with an EoTech and there is no way in hell that co-witness's.
vz_afghan.jpg

;)
As for ThreeOneBravo's last coment the Troy Micro's on the NEA AR stock adaptor and there barrel clamp rocks. Make sure your objective lens on your red dot is not small so you don't obstruct your field of view.
 
I must be mistaken the meaning of Co-Witness then but then again here are some pic's of a non-NEA handguard acheving the same resualt's? Say it aint true...

As far as this computer comando is concerned Co-Witness is some smoke and mirrors. If you have issues with your optic you should just ditch the pig. But then again don't believe me look at the photo off the NEA web site that shows an Czech Army guy with an EoTech and there is no way in hell that co-witness's.

;)
As for ThreeOneBravo's last coment the Troy Micro's on the NEA AR stock adaptor and there barrel clamp rocks. Make sure your objective lens on your red dot is not small so you don't obstruct your field of view.


What elevation is your rear sight at in that picture? It looks like your front sight is cranked way up. The point of the NEA set-up is that your irons are still useable AND regulated properly.

Getting a single-distance co-witness is possible with more than the NEA/Micro/TRS-25 setups.
 
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