cheap green laser

i want a green laser( or some super awsome red laser) that can be adjusted and fit in a mount for around 20 dollars. i have been looking at ebay for some of these, but im not sure what brands/types of green lasers will last the longest/work the best. i would prefer to have one with a pressure switch but id rather have a quality laser. im also willing to get a laser and flashlight combo. if you dont have a green laser to sell to me, a reference to a website or brand would be greatly appreciated, thanks

www.evike.com
www.airsoftgi.com
they MIGHT have something in your price range.
Just check em out.

"Super awesome red laser" "20$" . You can find plenty of lasers for 20$, but it isnt going to do you any good. For that cheap they tend to unadjust themselves given just time, none the less even the small amount of jarring that comes from the firing of an airsoft gun is enough to offset them. You may also want to think about the effectiveness for a laser in airsoft, you'll find its just furniture for your weapon with little to no practical application available, its just the limitations of the guns we use. I'd suggest investing in an AimAssist instead.