AR Sponsor
Posted: 9/13/2007 10:48:33 AM EDT
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I posted a reply to a handgun sighting problem post caused by bi-focal glasses and decided that my solution might be of some help to those of you shooting iron sights on your ARs too. Below is a simple and cheap (is free cheap enough?) foolproof method for really improving my sight picture using iron sights. Remember in science class when they talked about a pin hole camera and how the small aperture gave it an infinite depth of field? Depth of Field is the measurement where everything is in focus so if you have a depth of field of 100yds, then anything within 100yds of your eye would be in focus. That means that the rear sight, front sight, and target would all be in focus. Sounds too good to be true? Sounds expensive? Well, you can get the same benefit by making a pin hole matrix for your regular glasses that will get you the rear sight, front sight, and target all in focus no matter how far away any of them are from you or each other. How you ask? Simple. Take a piece of black electrical tape and a hole punch (3-hole works). Punch out some circles which will be about ¼” in dia. Place them on a matchbook cover (so you can peal them off without bringing up the paper with the tape) then take a small nailset and punch a small 1/16” dia. hole in the middle of the tape circle. Trust me, the smaller the hole the better. Make a few of them and save them on the matchbook cover in your range bag. Then all you do is stick one to your glasses as shown below so that you look through the hole when you’re normally looking through your iron sights. Move it as necessary to get a comfortable spot. You’ll be amazed at how clear everything is and you'll notice that the big black circle is hardly noticable. BTW, if you get some sticky on your glasses in the hole, everything will be blurry so just peal the spot off, clean your glasses, and reapply it.  I've been using this setup for years. In fact, this is an old pair of my glasses (blended lenses) that I keep in my shooting bag all set up and ready. |
AR Sponsor