I'm looking to buy one of these for my AR (would love the Surefire version but it's just out of my price range). Anyone have experience with this second version of the Alpah 9? Also wondering if anyone knows of an LED drop in for it that can match it's advertised 250 lumen output. I posted a similar thread in the incandescent forum but didn't recieve any responses so I apologize in advance for the double post.