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Posted: 11/21/2008 7:22:29 PM EDT
[Last Edit: 11/21/2008 7:23:07 PM EDT by bigkracka]
I tried a Troy BUIS behind my 516 and could barely see the front sight or ghost ring.  I know they raised the units 7mm to get them up where they should be(lower 1/3 co-witness), but the Troy is in the bottom of the glass.  I could barely see it over the Eotech.  Anybody else notice this?
Link Posted: 11/21/2008 7:36:21 PM EDT
Link Posted: 11/21/2008 7:41:18 PM EDT
My Eotech 516 and troy BUIS co witness perfectly......
Link Posted: 11/21/2008 8:04:09 PM EDT
Originally Posted By new-arguy:
Is the 516 mounted directly to a flat top upper? Is the Troy BUIS mounted to the rear-most slot on the upper?

Yes and yes
Link Posted: 11/21/2008 8:16:12 PM EDT
Link Posted: 11/21/2008 8:24:22 PM EDT
Originally Posted By bigkracka:
I tried a Troy BUIS behind my 516 and could barely see the front sight or ghost ring.  I know they raised the units 7mm to get them up where they should be(lower 1/3 co-witness), but the Troy is in the bottom of the glass.  I could barely see it over the Eotech.  Anybody else notice this?



Give us your total rifle setup.  Sounds like you have some kind of problem that could be "self inflicted"...
Link Posted: 11/22/2008 11:37:29 AM EDT
Flatop upper and stock FSB, nothing modified or unusual.  It's like the Troy is too short.
Link Posted: 11/22/2008 12:39:24 PM EDT
Originally Posted By bigkracka:
Flatop upper and stock FSB, nothing modified or unusual.  It's like the Troy is too short.


Surely you have it in the up position?
Link Posted: 11/22/2008 12:50:20 PM EDT
Originally Posted By Elvis-Ar15:
Originally Posted By bigkracka:
Flatop upper and stock FSB, nothing modified or unusual.  It's like the Troy is too short.


Surely you have it in the up position?

This aint my first rodeo.
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