The ACOG would've the FO and tritium or use a AA battery to light up the reticle. Having said that the eyebox gets truly tight around the 4x ACOG, and also you’ve limited it to a fixed energy scope. The 5.5x ACOG is good, but pretty huge/cumbersome and adds body https://tealbookmarks.com/story18564434/the-definitive-guide-to-link-ak4d