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View Full Version : Help settle a debate - re: BUIs, beveling, and which way they face.


NorCalAthlete
02-19-2012, 4:41 PM
I've only ever used Matech BUIs before in the military, which are made with the bevel facing the shooter.

See this picture here:
http://www.cgwgun.com/images/products/matech.jpg

A friend of mine just bought a BCM upper with Troy BUIs, and I commented on how his sights were mounted backwards. His came from the shop with the bevel facing OUT, flat side towards the shooter. Troy's webpage shows the same thing. Additionally, the night-time (larger) aperture is the default sight when you do flip it up, as it's impossible (due to the design) to fold it down with the day-time sight selected. Check out troy's video here:
http://store.troyind.com/Rear_Folding_BattleSights_s/24.htm

At 1:49 you can clearly see their sight mounted with the bevel out, and the shooter looking through the night-time aperture.

Now I'm confused. Which direction is the bevel SUPPOSED to face?

Arkangel
02-19-2012, 5:19 PM
They are mounted correctly in the video. If that is how your friend has them mounted, then they are good to go. Yes with the smaller aperture the sight cannot be folded down completely, that is just the design.

SureShot241
02-19-2012, 5:59 PM
I have no input in the matter, but I must say this:

OP, great avatar! He was a great man.

speedrrracer
02-19-2012, 6:11 PM
For those of us trying to follow at home, is this correct?

This is the side that should face the shooter:
http://store.troyind.com/v/vspfiles/photos/SSIG-DOA-RFxx-00-2.jpg

This side should not face the shooter:
http://store.troyind.com/v/vspfiles/photos/SSIG-DOA-RFxx-00-3.jpg

AlpineWeiss
02-19-2012, 6:13 PM
^ Makes sense, the writing is on the side that should face the shooter.

russ69
02-19-2012, 6:54 PM
In addition to the sight markings, the windage adjustment should work properly. If it's mounted backwards that wont be right.

LBDamned
02-19-2012, 6:59 PM
it folds down towards the shooter.

LAL6
02-19-2012, 7:04 PM
^ Makes sense, the writing is on the side that should face the shooter.

Unless you're playing Call of Duty.
http://img84.imageshack.us/img84/7763/q1hkfxn0.jpg

LBDamned
02-19-2012, 7:05 PM
For those of us trying to follow at home, is this correct?

This is the side that should face the shooter:
http://store.troyind.com/v/vspfiles/photos/SSIG-DOA-RFxx-00-2.jpg

This side should not face the shooter:
http://store.troyind.com/v/vspfiles/photos/SSIG-DOA-RFxx-00-3.jpg

this should be common sense - why would the marking face away from shooter? *the cross hatches, not the writing (the writing doesnt matter at all).

451040
02-19-2012, 7:18 PM
... the night-time (larger) aperture is the default sight when you do flip it up, as it's impossible (due to the design) to fold it down with the day-time sight selected.

The large aperture is used for 0-200m and the small aperture is used for 200m+. Could it be that imminent threats are usually close so the large aperture is the default?

Which direction is the bevel SUPPOSED to face?

On the Troy's it's bevel facing the muzzle.

Turbinator
02-19-2012, 7:33 PM
How about folding front sights - should they fold towards the user, or away?

Turby

SmokingSam
02-20-2012, 8:17 AM
I have a few of the Troy sites. They all fold AWAY from the Muzzle. The front and the rear.

NorCalAthlete
02-20-2012, 8:20 AM
Found another pic of troy sights, this one on BravoCo's site - this one, if folding towards the user, would be with the bevel also facing the user:

http://a248.e.akamai.net/origin-cdn.volusion.com/j4enh.r2en5/v/vspfiles/photos/Troy%20Rear%20Sight%20-%20Rear-2T.jpg

vs

http://store.troyind.com/v/vspfiles/photos/SSIG-FBS-R0BT-00-2T.jpg

(This is the type my friend has btw - no text/hash marks like the diamond one has)

LAL6
02-20-2012, 11:50 AM
The bevel goes towards the muzzle. This is the side that says "folding battle sight" on it.

If that's the way it's shown in troy's pictures and video, I don't see why the confusion.

rero360
02-20-2012, 12:29 PM
If it bothers you so much, just pull it apart and flip the apertures so it'll fold down with the small aperture in use. I did it on mine, relatively easy and doesn't change how it functions as far as adjustments go.

Dhena81
02-20-2012, 2:24 PM
I have a few of the Troy sites. They all fold AWAY from the Muzzle. The front and the rear.

The bevel goes towards the muzzle. This is the side that says "folding battle sight" on it.

If that's the way it's shown in troy's pictures and video, I don't see why the confusion.

^^^^These

VictorFranko
02-20-2012, 2:33 PM
I have a few of the Troy sites. They all fold AWAY from the Muzzle. The front and the rear.

The bevel goes towards the muzzle. This is the side that says "folding battle sight" on it.

If that's the way it's shown in troy's pictures and video, I don't see why the confusion.

^^^^These

Agreed.

MrPlink
02-20-2012, 3:19 PM
So now that we have solved this mystery, which way does an Acog go?:D

taloft
02-20-2012, 3:20 PM
It's a back up iron sight. You want it to fold away from your primary optic otherwise, it eats too much real estate.

Fate
02-20-2012, 4:52 PM
The original design of peep sights like this are on Garands and M1 Carbines. The bevel is supposed to be the side unseen by the shooter (flat side towards shooter). Many "modern" BUIS got it wrong.

discoed
02-20-2012, 5:03 PM
If it bothers you so much, just pull it apart and flip the apertures so it'll fold down with the small aperture in use. I did it on mine, relatively easy and doesn't change how it functions as far as adjustments go.

What he said.

If you were in the military the way Troy Industries designed their rear sight seems backwards. I took mine apart carefully and flipped it around. Just be very careful to not loose the tiny ball bearings inside.

NorCalAthlete
02-20-2012, 8:35 PM
So here's the next question - can anyone tell me the purpose of the bevel? :p


If that's the way it's shown in troy's pictures and video, I don't see why the confusion.
http://www.bayarearidersforum.com/forums/images/smilies/24.gif I don't trust a few marketing/advertising photos, especially when they conflict with each other on the same company's page and products.
http://img.photobucket.com/albums/v510/nwcid/badbrochure.jpg

Ian
02-20-2012, 9:24 PM
^ OH wow...hahhaah

L4D
02-20-2012, 9:37 PM
So here's the next question - can anyone tell me the purpose of the bevel? :p


http://www.bayarearidersforum.com/forums/images/smilies/24.gif I don't trust a few marketing/advertising photos, especially when they conflict with each other on the same company's page and products.
http://img.photobucket.com/albums/v510/nwcid/badbrochure.jpg

LMAO. someone got fired.