Conrad101st - Those rings are Vortex.
375fan - That is a SilencerCo Omega. Thank you! Barrel length is 28" and the contour is a straight taper to .750 at the muzzle.
Hammerdown - Thank you. This rifle is going on a prairie dog shoot in a couple of weeks and then to Africa at the end of this year or the first of next year.
Oldelkhunter - You're welcome.