I'm in the market for my first laser, a green one with NO flashlight. I'll swap it between different guns, so I'd like something pretty compact and universal. Initially I was all set on the Viridian C5, but then I came across the Crimson Trace CMR-206 which is also very highly rated...but it's over $100 less expensive! $124 vs $239. Nothing jumps out at me as a reason why the Viridian is so much more. Is it more durable perhaps? Not sure if I'm missing something. Is the Crimson Trace a good buy at that price? Thanks for any advice.