Quoted:
Quoted:
Another difference is that the ARMS have a spring to raise the sight and doesn't lock in the up position, a spring is another part that have to be maintained when worn out.
The Troy doesn't have a spring and locks up, a release button have to be pushed to lower the sight.
ARMS have exposed easy to accidentally mis adjust windage knob while the Troy have shrouded windage adjustment.
I went with Troy on my two carbines, just personal preference.
Troys have springs in them as well... they dont flip the sights up, but there are springs in the locking mechanism... the spring loaded push-button.
ETA - Have had both in the past, and I just got another pair of LaRue marked Troy's sitting on my rifle.
Agreed, I was just talking about the spring that flip up the ARMS sight which the Troy doesn't have.
To OP revo99:
Troy BUIS also deploys with the large aperture as default, ARMS first default are the small aperture.
Some prefers the small aperture first when used, some prefers the large aperture first, I prefer the large aperture first just in case I have to use it in close range first.
As stated by the post above, Troy also comes with different markings like LaRue, Noveske, and BCM.