HDRDKG Posted July 6, 2007 Share Posted July 6, 2007 Greetings, I am having a Trijicon night sight insert put into the M4 front sight, which is really all you need, I just don't like the meprolights. Does anyone know what size wrench for the little nut that holds the front sight in? Thank you. Quote Link to comment Share on other sites More sharing options...
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