The VP9L OR has some essential upgrades for honing your skills on the range. Features the O-ring bushing on the longer 5" barrel tightens up the lockup; the 15rd extended magazines allow you to shoot more; machined optics cut slide accommodates popular red dots; extended slide assembly with lightening cuts and a grip with interchangeable backstraps and side panels that allow for 27 different custom grip configurations. Includes two magazines and Holosun SCS green dot optic.