colt 6920

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    Help me accurize my 6920

    I'm new to the world of ARs and could use some experienced guidance. I have a Colt 6920 with an ACOG TA11F in an ADM mount. I would like to utilize the ACOG BDC and according to Trijicon an 18" barrel would be best. I want the rifle to be as accurate as possible without sacrificing reliability...