YHM freefloat sighting issues > AR Discussions

Posted: 8/24/2012 9:51:50 PM EDT

I have a YHM free float quad rail on my rifle and I have a troy folding front sight. The gun shoots really high in the current configuration (about 8 inches at 50 yards) and I was wondering if there is a way to change the angle of the rail so that my sighting will be more accurate.

Posted: 8/24/2012 10:15:14 PM EDT

[#1]

Doesn't that troy front sight have the elevation adjustment like a normal AR15 front sight?
If so, adjust the sight up and this will lower your point of impact.

Posted: 8/24/2012 10:21:51 PM EDT

[#2]

Yes it does and believe me ive tried. The point of impact is still wayyyyy too high even after it is fully adjusted. Ive come to the conclusion the the rail needs to be adjusted

Posted: 8/24/2012 10:37:10 PM EDT

[#3]

Theres no way to adjust . The tube &/or locking nut might not be square or have some burrs . You can use a pencil or something to mark the locking nut . Then remove the tube & nut & check for burrs . If its not square you will have to remove material from the upper half of tube &/or locking nut .

ETA: It could also be the upper receiver face is not square or a combination of both .

Posted: 8/24/2012 10:51:00 PM EDT

[#4]

Dammit.. I knew i should have stuck with the trusty fsb.

Posted: 8/25/2012 4:15:52 AM EDT

[#5]

is it possible you put a gas block height sight on the same-plane rail?

****edit. it's early and i haven't had my coffee. that would shoot low.

Posted: 8/25/2012 7:09:21 AM EDT

[#6]

Quoted:

Dammit.. I knew i should have stuck with the trusty fsb.

....or a better rail.

Posted: 8/25/2012 7:44:30 AM EDT

[#7]

It would be seriously difficult to screw up the installation of the rail.
If one of the rail parts is bad I am sure YHM will replace it.
Lay the upper assembly on a flat surface to see if the rail is level with upper.
Run a long rod through the barrel and out the back of the upper, this should give an easy visual clue as to how straight the bore is to the upper.

Posted: 8/25/2012 10:25:12 AM EDT

[#8]

Quoted:

Quoted:
Dammit.. I knew i should have stuck with the trusty fsb.

....or a better rail.

^

Posted: 8/25/2012 10:44:27 AM EDT

[#9]

Quoted:

Quoted:
Dammit.. I knew i should have stuck with the trusty fsb.

....or a better rail.

^

What's wrong with YHM? I have a rifle length diamond series on my WW AR and using magpul mbus or a $25 piece o'shit BSA red dot I can shoot 1-1 1/2" groups at 100 yards.

Posted: 8/25/2012 11:14:18 AM EDT

[#10]

Quoted:

Quoted:
Dammit.. I knew i should have stuck with the trusty fsb.

....or a better rail.

^

What's wrong with YHM? I have a rifle length diamond series on my WW AR and using magpul mbus or a $25 piece o'shit BSA red dot I can shoot 1-1 1/2" groups at 100 yards.

Posted: 8/25/2012 12:32:53 PM EDT

[#11]

Quoted:

Quoted:
Dammit.. I knew i should have stuck with the trusty fsb.

....or a better rail.

^

What's wrong with YHM? I have a rifle length diamond series on my WW AR and using magpul mbus or a $25 piece o'shit BSA red dot I can shoot 1-1 1/2" groups at 100 yards.

Because you can't its BS?

Posted: 8/25/2012 12:56:03 PM EDT

[#12]

Strong.... I love people that aimlessly knock brands that they are not familiar with or are "lesser" in their minds

If it is off YHM will make it tight

Posted: 8/25/2012 2:18:05 PM EDT

[#13]

I like how everyone is blaming the YHM rail when it could be the sights. Anyway...

Try this

Posted: 8/25/2012 5:00:42 PM EDT

[#14]

I will try everything you guys have mentioned and see if I can't get this to work. Thanks for the help guys.

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