I was at the range with a buddy yesterday and he was using a new Holosun on his "work" rifle. He had to make sure it was dialed in for SWAT testing. I was pretty impressed with it as he was hitting a 2 moa orange dot with it consistently. Laying down consistent 1 1/2" 3 shot groups at 100. He had to replace a Vortex red dot that gave up the ghost the other day. A lot of his buddies use the Holosun, so it came highly recommended to him. He said he's used to using eotechs and Aimpoints when he was a contractor, but likes this Holosun with the solar panel on it. I guess battery life is phenomenal. Wondering how durable they are though? What have been your guys' experience.