I wish someone would make a light with a snap on bayonet lug mount. Not a rail adapter that bolts onto the lug, but a light that easily snaps on and off. It's impossible to put a bayonet on my 16" barrel anyway, so it would be nice to use the lug for something other than just looking cool. Also, even on rifles where you can mount a bayonet correctly, I read that if you ever try to use one on an AR15/M16 you are going to tweak the crap out of the front sight base anyhow and throw your sight alignment off. Why not use the lug for something practical?