i havent had great luck with leupold optics the last few years. but they do honor their warranty. both of the ones ive sent back have been repaired fairly promptly. they arent as rugged as their price point suggests they are in my opinion.
as for the mark AR series... i dunno i just think you can do better elsewhere leupold is off my buy list atm.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent