I hate this is a first post but want someone to get some good use out of this. ATI stock came off 9mm carbine. Comes with ATI top pic rail, Magpul MBUIS flip up sights, and red dot sight $120 The red dot has four reticles to choose PLUS choices of red or green for each reticle. Plus there is a brightness setting. The stock does have two small holes in the but where I ran a bolt through in order the attached the butt plate on a spring giving me quick access to the cavity in the back. I have since removed that setup but the holes remain. Comes with the sling stud mounts as pictured. Thanks!