Aimpoint version seen here mounted on my MP5k
The one m102404 has is probably better for the actual acquisition of target as I find with the smaller one on the aimpoint that by the time you've lazed a room with this site you're pretty much spotted and have had your hand shot or your gun. For airsoft I'd say a barrel mounted mirror would be the best option you can get it down low or up high to check around a wall, get a location on that person and only risk a gun hit, given that you have a secondary you now know there is a person and where he's hiding which gives you an edge, that helps even out the fact that he's on the defense with most likely better cover and angles if he's set himself up properly. That all said I can't help but giggle when I see the large mirrors off of a truck or trailer mounted to a shotgun as some SWAT forces in the state use, effective perhaps but it still gets a giggle.
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"The hydrogen economy car from the people who brought you the '
Hindenburg'" - Glen Foster
Condoms do not guarantee safe sex any more. A friend of mine wore one and was shot by the woman's husband!