AR Sponsor
Posted: 4/8/2005 12:21:40 PM EDT
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Hi All, I just received my A2 RRA upper. The rear sight has two different diameter holes and I am able to flip to the one I want to use. One is a small diameter and the other hole is slightly larger. What is the reason for this and how do I know which one to use? My initial assumption is one hole is for shorter ranges and the other is for longer range targets. Is this correct? Thanks for the help. |
| "The M16A2 rear sight system offers a dual flip-up aperture: the short range aperture (0-200 meters) has a larger opening for greater light gathering as well as better moving target visibility; the smaller aperture is designed for maximum accuracy at longer ranges." |
AR Sponsor