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FO Sights - variable lighting conditions


RickT

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I "graduated" from a FO front sight to FO front and rear primarily due to sight alignment issues in variable lighting conditions.  Wife and I practice in partial shade under a large tree and shoot an early morning SC match with variable lighting on the targets.  I just found that my alignment was more reliable ether using the posts or the FO, but not so much with just a front FO sight where I might lose the fiber optic dot in lower light.

My wife transitioned to this sight setup some months ago and her accuracy is up and down.  Of course no one can diagnose another's problem over the interweb, but I wonder if others using FO on either just the front or front/rear sights have experienced issue during fast transitions (for example, not picking up the top of the front blade due to FO focus).  Even a recent improvement to her rear sight might be contributing to the problem; her rear sight dots were different sizes and dirty so I replaced the fibers and made the dot larger on both blades resulting in an increase in brightness.  Even this could be contributing.

 

 

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I found FO front and rear to be to distracting and it slowed me down.  I ended up blacking the rears out with a sharpie.  You can try this without having to change the sights to see if it helps.  I prefer a single red front with a wide gap rear.  When it is darker I mostly rely on the sight post.

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I use a black rear/fiber front. I find dots of any sort on the rear tremendously distracting.

How old are you and the wife? I'm 46 and I just got a pair of shooting glasses. If you can no longer focus on the front sight due to presbyopia, there is no magical sight combination that will allow you to see the sights without corrective lenses.

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Black rear and fiber front for anything but dark. 

 

I have found as dark approaches, the more rear sight focus I need though. When there is adequate light, the rear is subconcious. When it gets duskish, if I don't pay attention shots go everywhere.

 

Definitely not a fan of rear dots though.

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  • 4 weeks later...
  • 3 weeks later...
On 12/4/2016 at 6:32 PM, joerenew said:

I am having a hard time switching from night sights to fiber any tips?

Most night sights I have used always have a larger front sight wheras fiber optic front sights are smaller diameter. The fiber makes precision shots easier, it will just take using them some more to get use to picking up the smaller fiber front if you've always shot big front night sights. 

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2 hours ago, shaun1826 said:

Most night sights I have used always have a larger front sight wheras fiber optic front sights are smaller diameter. The fiber makes precision shots easier, it will just take using them some more to get use to picking up the smaller fiber front if you've always shot big front night sights. 

Thanks Shaun I have been adapting to them the last few days and can definitely see the accuracy when I concentrate!

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I did change front and rear to green.  Red is harder to focus on especially the rear sights when my glasses are focused at front sight distance.  At 71 y/o I don't have great depth of field.  I don't find the rears distracting in normal outdoor conditions, but I didn't do justice to the lighting challenge on our practice range: the targets can be in partial//variable shade with bright sun on the fibers.  The darker background opens up your pupils which further degrades the quality of your sight focus.  Getting old stinks.

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  • 3 weeks later...

Hi Rick,

Same boat here.

I just turned 69; I'm trying to stay in great shape.

My Tanfo LC is set with green FO front, black serrated rear; I try red front FO and switched to green.

I went to see my eyes specialist in november; I explained my sights problems and asked her to measure the length from my eye to the front post and issue a prescription accordingly, what she did. 

Then she said I'll have to go up and down with my head to meet the proper lens area....no way I could do that.so I left the whole thing on the ice.

Last month, I was passing in front of the eye department at Cosco and, just to make sure, I explained my problem to the lady there; she asked if I had considered contact lens. I don't wear glasses except for reading so contact lenses are not my main concern.

She gave me ten lens to try and solved my problem. And I only wear one on the right eye only.

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I recently switched from front and rear combos to black rears with color front in my Glock 17. I did find it beneficial especially since I am right hand/left eye dominant. Game changing? No but it just seemed to clean up the sight pick up process a tad bit.

 

- Originally I went with a .245 height that was recommended by Vickers but it was absolutely too high. Broke out the file and ended up with a .232ish height, touched it up with some blueing and POA/POI are once again united. By filing, I was able to eliminate my tendency to sometimes hit alittle low with my Glock 17.I removed, what would seem like alot, but it worked out fine running 124s and 115 bulk ammo. @25yd, it is a wee bit high but only at the slow and steady trigger pull pace. If I push the split times faster, all is good. If I do a 6 o'clock hold at 25 its on, if I do a POA/POI its still good. 

 

- Maybe this is Glock sights specific. My new CZ is black/black so it is easier to get front sight/rear sight alignment but at the cost of less visual color contrast in lower light situations. That thing is dead on. Not sure if I am going to swap out for some fiber optic, gold bead, or contrasting front sight...not like its going to be a carry gun.

 

Glock 17 sights are the Vickers Elite battlesight. Different rear sight height as well as front sight height 

Edited by buckyjames1
wrong info
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