[vhcook]

Originally Posted by Brandon Holley

I believe http://www.mcmaster.com/#2073A21 is Class 1M. No idea what "1M" means versus just "1".

-Brando

1M means it's a broad-beam laser that's Class 1 for the naked eye but not safe (over class 1, not higher than Class 3B) when viewed through magnifying optics. I'm not sure whether FIRST would permit it, but considering that there's a possibility folks in the stands are using binoculars, I'm not sure I'd chance it.