 Tony Molina with the Jacksonville Shooting Experience here. Here you share an easy way to teach somebody proper iron sight alignment. What I have here is a training pistol, airsoft gun with a straw taped to the top. Most students see this front sight but don't really know the back sight exists or aren't really familiar with how to align them properly. This straw allows you to tell them look through the straw and you will see the proper alignment of your sights. And what they will do is tilt that gun down so that the correct orientation comes in and you can't really tilt this and see the front sight without having that correct orientation. I hope this is helpful to anybody looking to teach people about shooting iron sights. This is a difficult topic. I actually had a student take a pistol class with me and after our safety briefing we went into basics on iron sights and she was blown away. She said I can't believe no one taught me this in my last course. She went through an entire tactical pistol course without knowing how the iron sights aligned and nobody caught this. I recommend if you're teaching people, look for those high shots. It's a key indicator that they do not correctly understand the alignment of those iron sights. Hope this helps you guys out. Thanks very much.